WO2011036785A1 - 車両用制御装置 - Google Patents
車両用制御装置 Download PDFInfo
- Publication number
- WO2011036785A1 WO2011036785A1 PCT/JP2009/066738 JP2009066738W WO2011036785A1 WO 2011036785 A1 WO2011036785 A1 WO 2011036785A1 JP 2009066738 W JP2009066738 W JP 2009066738W WO 2011036785 A1 WO2011036785 A1 WO 2011036785A1
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- WIPO (PCT)
- Prior art keywords
- state
- vehicle
- power supply
- supply line
- vehicle control
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- Ceased
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
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- B60L3/0053—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to fuel cells
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- B60L8/003—Converting light into electric energy, e.g. by using photo-voltaic systems
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Definitions
- the present invention relates to control of a vehicle provided with a relay for switching the state of a power supply line between a rotating electrical machine and a power storage device between a conduction state and a cutoff state, and in particular, detects a charging state of the power storage device.
- the present invention relates to power supply cutoff control by a charge state detection unit.
- Patent Document 1 discloses that even if a communication abnormality occurs between a control device that controls a power supply system and a vehicle motion control device that is supplied with power from the power supply system.
- a power supply system for a vehicle that realizes a normal retreat operation of the vehicle motion system is disclosed.
- the vehicle power supply system is a vehicle power supply system including a first control device, a second control device, and a signal line connecting the first control device and the second control device.
- the first control device based on the operation of the vehicle occupant, controls the electrical connection and disconnection between the power storage mechanism mounted on the vehicle and the electrical load, and the signal line abnormality.
- the second control device includes: means for controlling an electric load that is operated by electric power supplied from the power storage mechanism; means for detecting an abnormality of the signal line; and disconnection of electrical connection by a vehicle occupant Means for detecting a requested operation.
- the first control device is electrically connected until the condition for the second control device is satisfied. Control so that the connection is not interrupted. For this reason, since the electric power to the electric load is supplied to the second control device, the evacuation process can be normally performed. As a result, even if communication between the first control device that controls the power supply system and the second control device of the vehicle motion system that is supplied with power from the power supply system becomes abnormal, the vehicle motion system is normal. A power supply system for a vehicle that can realize a retreat operation can be provided.
- An object of the present invention is to provide a vehicle control device that can quickly shut off the power supply when the power storage device is abnormal.
- a vehicle control device includes a rotating electrical machine, a power storage device for supplying power to the rotating electrical machine, and a power supply line that connects the power storage device and the rotating electrical machine in a conductive state and a cut-off state. And a relay for switching between the vehicle and the vehicle.
- the vehicle control device includes a vehicle control unit for setting the state of the power supply line to a cut-off state when the first condition is established for the vehicle state, and an operation of the power storage device in parallel with the operation of the vehicle control unit.
- Charge state detection for detecting the state of charge, transmitting the detected state of charge to the vehicle control unit, and setting the state of the power supply line to the cut-off state when the second condition is satisfied for the state of the power storage device
- a power cut-off unit for making the state of the power supply line cut off by a relay in response to a request from at least one of the charge state detection unit and the vehicle control unit.
- the second condition is a condition that an abnormality has occurred in the power storage device. More preferably, when the second condition is satisfied at the time of starting the vehicle, the charging state detection unit is configured to wait after the standby time has elapsed after the state of the power supply line is switched from the interrupted state to the conductive state by the relay. The power supply line is requested to be in a cut-off state.
- the vehicle further includes an internal combustion engine mounted as a power source.
- the vehicle control unit starts the internal combustion engine after controlling the relay so that the state of the power supply line is switched from the cut-off state to the conduction state when the first condition is satisfied when the vehicle is started.
- the predetermined time is the time from when the state of the power supply line is switched to the conducting state until the start of the internal combustion engine is completed.
- the vehicle control device further includes a current detection unit for detecting the current of the power supply line.
- the charging state detection unit determines that the state of the power supply line has been switched to the conductive state by the relay when the current detected by the current detection unit exceeds a threshold value when the vehicle is started.
- the relay is driven by receiving an instruction signal from the power cut-off unit.
- the charging state detection unit determines that the state of the power supply line is switched to the conductive state by the relay when the instruction signal indicates that the state of the power supply line is set to the conductive state when the vehicle is started.
- the vehicle is provided with an operation unit for starting the vehicle system.
- a vehicle control part starts the starting process of the system of a vehicle according to the driver
- the charge state detection unit determines that the state of the power supply line has been switched to the conductive state by the relay when the determination time has elapsed since the start-up process was started by the vehicle control unit.
- the vehicle is provided with an operation unit for starting the vehicle system.
- a vehicle control part starts the starting process of the system of a vehicle according to the driver
- the charging state detection unit determines that the state of the power supply line has been switched to the conductive state by the relay when the startup process is completed.
- the state of the power supply line can be set to the cut-off state by a request from the charge state detection unit for detecting the charge state of the power storage device. For this reason, even when the vehicle control unit is realized by software and a problem occurs during execution of the control by the software, the power supply can be directly cut off at the request of the charge state detection unit. Therefore, it is possible to provide a vehicle control device that can quickly shut off the power when the power storage device is abnormal.
- the vehicle on which the vehicle control device according to this embodiment is mounted is not particularly limited to a hybrid vehicle as long as it is a vehicle that uses a rotating electrical machine as a power source.
- the vehicle may be an electric vehicle or a fuel cell vehicle.
- the hybrid vehicle may be any vehicle that can travel with the power of the motor generator as a power source while the internal combustion engine is stopped. Therefore, the hybrid vehicle is not limited to the configuration of the hybrid vehicle shown in FIG. 1, and may be a hybrid vehicle having another aspect in which a secondary battery is mounted as a traveling battery.
- the hybrid vehicle includes an internal combustion engine (hereinafter referred to as an engine) 120 as a drive source, a motor generator (MG) 140 as a rotating electric machine, and a transmission 202 connected to the engine 120 and the motor generator 140, respectively.
- an engine hereinafter referred to as an engine
- MG motor generator
- transmission 202 connected to the engine 120 and the motor generator 140, respectively.
- the motor generator 140 is expressed as a generator 140A and a motor 140B, but the generator 140A functions as a motor or the motor 140B functions as a generator depending on the traveling state of the hybrid vehicle. To do.
- this motor generator 140 functions as a generator, regenerative braking is performed.
- motor generator 140 functions as a generator, the kinetic energy of the vehicle is converted into electric energy, and the vehicle is decelerated.
- the transmission 202 includes a reduction gear 180 and a power split mechanism 200.
- Reducer 180 transmits power generated by engine 120 and motor generator 140 to wheel 160, and transmits driving of wheel 160 to engine 120 and motor generator 140.
- the power split mechanism 200 is, for example, a planetary gear mechanism for distributing the power of the engine 120 to two paths of the wheel 160 (that is, the motor 140B) and the generator 140A.
- the planetary gear mechanism includes a sun gear, a ring gear, a carrier, and a pinion gear.
- the sun gear of the planetary gear mechanism is connected to generator 140A
- the carrier is connected to engine 120
- the ring gear is connected to motor 140B.
- a transmission mechanism may be provided between the ring gear and the motor 140B.
- the hybrid vehicle further includes a traveling battery 220, an inverter 240, and a system main relay (hereinafter referred to as SMR) 310.
- SMR system main relay
- Traveling battery 220 is a power storage device that stores electric power for driving motor generator 140.
- the traveling battery 220 outputs DC power.
- the traveling battery 220 is a rechargeable secondary battery, for example, a nickel-metal hydride battery or a lithium ion battery. Note that the present invention is not limited to these, and any device that can generate a DC voltage, for example, a capacitor, a solar cell, a fuel cell, or the like can be applied.
- the inverter 240 converts the DC power of the traveling battery 220 and the AC power of the generator 140A and the motor 140B. Inverter 240 receives DC power from battery for traveling 220 on the input side, converts it into AC power corresponding to the frequency command value, and outputs it to generators 140A and 140B.
- the SMR 310 is provided in the middle of the power supply line 222 that connects the traveling battery 220 and the converter 242.
- the SMR 310 switches the power supply state of the power supply line 222 between a conduction state and a cutoff state. Specifically, the SMR 310 closes the contact to electrically connect the power supply line 222 or opens the contact to electrically connect the power supply line 222 in response to a control signal from the PM-ECU 320. Or shut off.
- the power supply line 222 is in an electrically conductive state, the power of the traveling battery 220 is supplied to the motor generator 140 via the converter 242 and the inverter 240.
- electric power supply line 222 is in an electrically interrupted state, electric power of battery for traveling 220 is not supplied to motor generator 140.
- the hybrid vehicle further includes a battery ECU 260, an engine ECU 280, a PM-320, an SMR drive unit 324, a power switch 326, a current sensor 330, a voltage sensor 332, and a temperature sensor 334.
- the PM-ECU 320 includes a memory 322 that temporarily stores a program executed in the PM-ECU 320 and an instruction signal for the SMR drive unit 324.
- the SMR driving unit 324 will be described later.
- a current sensor 330, a voltage sensor 332, and a temperature sensor 334 are connected to the battery ECU 260.
- the current sensor 330 detects the current of the power supply line 222.
- Current sensor 330 transmits a signal indicating the detected current of power supply line 222 to battery ECU 260.
- Voltage sensor 332 detects the voltage of battery for traveling 220.
- Voltage sensor 332 transmits a signal indicating the detected voltage of traveling battery 220 to battery ECU 260.
- the temperature sensor 334 detects the temperature of the traveling battery 220. Temperature sensor 334 transmits a signal indicating the detected temperature of traveling battery 220 to battery ECU 260.
- the battery ECU 260 manages and controls the charge / discharge state of the traveling battery 220 based on the voltage, current and temperature of the traveling battery 220, and controls the driving of a cooling fan (not shown) provided in the traveling battery 220. Control for equalizing the state of charge among a plurality of modules or cells constituting the traveling battery 220, or determining whether or not the traveling battery 220 is abnormal.
- Engine ECU 280 controls the operation of engine 120.
- PM-ECU 320 controls battery ECU 260 and engine ECU 280 and the like to control the entire hybrid system so that the hybrid vehicle can operate most efficiently.
- PM-ECU 320 controls motor generator 140, inverter 240, converter 242 and the like according to information on the state of the hybrid vehicle and the state of charge of traveling battery 220 received from battery ECU 260.
- a converter 242 is provided between the traveling battery 220 and the inverter 240.
- the rated voltage of traveling battery 220 is lower than the rated voltage of generator 140A or motor 140B. Therefore, converter 242 boosts the voltage of battery for traveling 220 and supplies power to generator 140A and motor 140B.
- each ECU has a different configuration, but a configuration using an ECU in which two or more ECUs are integrated (for example, as shown by a dotted line in FIG. 1, battery ECU 260 and engine ECU 280,
- an ECU integrated with the PM-ECU 320 is an example).
- PM-ECU 320 calculates a required driving force for the vehicle corresponding to the depression amount of the accelerator pedal.
- PM-ECU 320 uses engine ECU 280 to control the output of engine 120 in accordance with the required driving force corresponding to the amount of depression. Further, PM-ECU 320 controls the power generation amounts of generator 140A and motor 140B according to the required driving force corresponding to the amount of depression.
- the hybrid vehicle travels only by the motor 140 ⁇ / b> B of the motor generator 140 when the engine 120 is inefficient, such as when starting or running at a low speed. .
- power split mechanism 200 divides the power of engine 120 into two paths, while motor 140B directly drives wheels 160, and on the other hand, generator 140A generates power.
- the motor 140B is driven by the generated electric power to assist driving of the wheel 160.
- electric power from the traveling battery 220 is further supplied to the motor 140B to increase the output of the motor 140B, and driving force is added to the wheels 160.
- motor 140B driven by wheel 160 functions as a generator (that is, motor 140B generates a negative driving force), regenerative power generation is performed, and the collected power is stored in traveling battery 220. It is done.
- the charging amount for traveling battery 220 is increased by increasing the output of engine 120 and increasing the amount of power generated by generator 140A. .
- control is performed to increase the drive amount of the engine 120 as necessary even during low-speed traveling. For example, it is necessary to charge the traveling battery 220 as described above, to drive an auxiliary machine such as an air conditioner, or to raise the temperature of the cooling water of the engine 120 to a predetermined temperature.
- the SMR 310 includes an SMRB 312, an SMRP 314, and an SMRG 316.
- the power supply line 222 includes a power supply line 224 and a ground line 226.
- the one end of the power line 224 is connected to the + terminal of the traveling battery 220.
- One end of the earth line 226 is connected to the minus terminal of the traveling battery 220.
- the other end of power supply line 224 and the other end of ground line 226 are connected to converter 242.
- the capacitor 232 is connected in parallel to the traveling battery 220. Capacitor 232 is provided at a position between SMR 310 and converter 242.
- SMRB 312 is provided in the middle of the power line 224.
- the contact is opened (off) by the SMR driving unit 324 or the contact is closed (on).
- the state of power supply line 224 becomes electrically conductive.
- the contact of SMRB 312 is opened, the state of power supply line 224 is electrically cut off.
- SMRG 316 is provided in the middle of the earth line 226.
- the SMRG 316 is opened or closed by the SMR driving unit 324. By closing the contact of SMRG 316, the state of earth line 226 passing through SMRG 316 becomes electrically conductive. When the contact of SMRG 316 is opened, the state of earth line 226 passing through SMRG 316 is electrically cut off.
- a resistor 318 is connected to the SMRP 314 in series. SMRP 314 and resistor 318 are connected in parallel to SMRG 316.
- the SMRP 314 is opened or closed by the SMR driving unit 324. By closing the contact point of the SMRP 314, the ground line 226 passing through the SMRP 314 becomes electrically conductive. When the contact of SMRG 316 is opened, ground line 226 passing through SMRP 314 is electrically cut off.
- PM-ECU 320 instructs SMR driving unit 324 to turn on / off each of SMRB 312, SMRP 314, and SMRG 316.
- SMR 310 SMRB instruction signal including an instruction to turn off SMRB 312
- SMRP instruction signal including an instruction to turn off SMRP 314
- SMRG instruction signal including an instruction to turn off SMRG 316
- the SMR driving unit 324 opens each of the contacts of SMRB 312, SMRP 314, and SMRG 316.
- the SMMR instruction signal including an instruction to turn on the SMRB 312 and an SMRP instruction signal including an instruction to turn on the SMRP 314 or an SMRG instruction signal including an instruction to turn on the SMRG 316 It transmits to the drive part 324.
- the SMR driving unit 324 closes each of the contacts of the SMRB 312 and the SMRP 314 when receiving the above-described SMRB instruction signal and SMRP instruction signal. Alternatively, when receiving the above-described SMRB instruction signal and SMRG instruction signal, the SMR driving unit 324 closes each of the contacts of the SMRB 312 and the SMRG 316.
- the PM-ECU 324 turns off the SMRP 314 and turns on the SMRG 316 after turning on the SMRB 312 and the SMRP 314, respectively.
- the present embodiment is a vehicle control unit for setting the state of the power supply line 222 to the cut-off state when the first condition is satisfied with respect to the state of the vehicle as a vehicle control device.
- the charging state of the traveling battery 220 is detected, the detected charging state is transmitted to the vehicle control unit, and the second condition is established for the state of the traveling battery 220
- the SMR 310 causes the power supply line to be switched by the SMR 310 in response to a request from at least one of the charging state detection unit, the vehicle control unit, and the charging state detection unit for setting the power supply line 222 to the cut-off state And a power shut-off unit for turning the state of 222 into a shut-off state.
- the PM-ECU 320 includes a power cutoff unit 400 and a system control unit 402.
- the “charge state detection unit” corresponds to the battery ECU 260.
- the “vehicle control unit” corresponds to the system control unit 402.
- the “power cutoff unit” corresponds to the power cutoff unit 400.
- the “first condition” is a condition that the driver has received an instruction to turn off the SMR 310, for example, by turning off the power switch 326.
- the “first condition” is not particularly limited to this. For example, a collision signal indicating that a vehicle has collided is received from a collision detection sensor or an airbag ECU (both not shown).
- the condition may be a condition that the interlock switch is activated by removing the upper cover of the power control unit including the inverter, or the condition that an abnormality has occurred in the vehicle system. May be.
- the “second condition” is a condition that the state of charge of the traveling battery 220 is abnormal.
- Battery ECU 260 transmits a first SMR off request signal to power shutoff unit 400 when battery for traveling 220 is abnormal.
- the battery ECU 260 transmits a first SMR OFF request signal to the power shut-off unit 400 as shown by a broken line arrow in FIG. 3 and informs the system control unit 402 that the traveling battery 220 is abnormal. Send.
- battery ECU 260 may determine that traveling battery 220 is abnormal when current Ib of power supply line 222 is greater than a predetermined value for a predetermined time or longer. .
- the battery ECU 260 may determine that the traveling battery 220 is abnormal when the traveling battery 220 is in a state where it cannot supply necessary power due to deterioration or the like. For example, battery ECU 260 may determine that traveling battery 220 is abnormal when the estimated value of the full charge capacity of traveling battery 220 is equal to or less than a predetermined value.
- the estimated value of the full charge capacity may be calculated based on, for example, the current Ib, voltage Vb, temperature Tb, or power input / output Win, Wout for the traveling battery 220.
- the system control unit 402 transmits a second SMR off request signal to the power shut-off unit 400 when the driver performs an off operation on the power switch 326.
- the system control unit 402 receives information indicating that the traveling battery 220 is abnormal from the battery ECU 260 as indicated by the broken line arrow in FIG. 3, the system control unit 402 sends the second SMR off request signal to the power cutoff unit 400. You may make it transmit to.
- power supply cutoff unit 400 When power supply cutoff unit 400 receives at least one of the first SMR OFF request signal from battery ECU 260 and the second SMR OFF request signal from system control unit 402, power supply cutoff unit 400 receives an SMR drive unit 324. In response, an instruction signal for turning off the SMR 310 is transmitted. In other words, power supply cutoff unit 400 transmits to the SMR driving unit 324 an SMRB instruction signal including an instruction to turn off SMRB 312, an SMRP signal including an instruction to turn off SMRP 314, and an SMRG signal including an instruction to turn off SMRG 316.
- the battery ECU 260 is described as an ECU provided separately from the PM-ECU 320.
- the function of the battery ECU 260 is integrated with the PM-ECU 320. It may be.
- PM-ECU 320 further includes a battery control unit 404 in addition to power supply cutoff unit 400 and system control unit 402. Battery control unit 404 has the same function as battery ECU 260. Therefore, detailed description thereof will not be repeated.
- the system control unit 402 executes control for starting the engine 120 when the information indicating that the traveling battery 220 is abnormal is received from the battery ECU 260 at the time of starting the vehicle. Since engine 120 is started by driving generator 140A, system controller 402 turns on SMR 310 to start the vehicle and then starts engine 120 using generator 140A to start engine 120.
- the battery ECU 260 determines that the traveling battery 220 is abnormal at the time of starting the vehicle, the first time after the standby time has elapsed after determining that the SMR 310 is turned on. Is sent to PM-ECU 320.
- FIG. 6 shows a functional block diagram of the battery ECU 260 in the present embodiment.
- Battery ECU 260 includes an abnormality determination unit 500, an SMR on determination unit 502, a timer unit 504, an elapsed time determination unit 506, and a power cutoff request unit 508.
- the abnormality determination unit 500 determines whether or not the traveling battery 220 is abnormal based on the current Ib, the voltage Vb, and the temperature Tb. Since the determination method of whether or not battery for traveling 220 is abnormal is as described above, detailed description thereof will not be repeated. For example, when it is determined that traveling battery 220 is abnormal, abnormality determination unit 500 may turn on an abnormality determination flag.
- the SMR on determination unit 502 determines whether or not the SMR 310 is turned on when the abnormality determination unit 500 determines that the traveling battery 220 is abnormal. Note that the SMR on determination unit 502 may turn on the SMR on determination flag when the SMR 310 is turned on.
- the SMR on determination unit 502 determines that the SMR 310 is turned on when the current Ib of the power supply line 222 exceeds the threshold value Ia.
- FIG. 7 shows a change in the current Ib of the traveling battery after the vehicle is started. As shown in FIG. 7, when it is determined at time T (4) that traveling battery 220 is abnormal, SMR-on determination unit 502 determines that current Ib is a threshold value at time T (5). When Ia is exceeded, it is determined that SMR 310 is turned on.
- the SMR on determination unit 502 turns on the SMR 310 when an instruction signal for turning on the SMRB 312 and SMRP 314 or an instruction signal for turning on the SMRB 312 and SMRG 316 is transmitted from the power shutoff unit 400 to the SMR driving unit 324. It is determined that
- the SMR on determination unit 502 refers to the respective instruction values of the SMRB instruction signal, SMRP instruction signal, and SMRG instruction signal stored in the memory 322 of the PM-ECU 320, for example, from the power shut-off unit 400 to the SMR driving unit 324.
- an instruction signal for turning on SMRB 312 and SMRP 314 or an instruction signal for turning on SMRB 312 and SMRG 316 is transmitted, it may be determined that SMR 310 is turned on.
- the SMR on determination unit 502 determines that the SMR 310 is turned on when a determination time (hereinafter referred to as STON elapsed time) has elapsed since the start of the vehicle start-up process.
- STON elapsed time is a time for which it is predicted that the SMR 310 is surely turned on after the start-up process of the vehicle is started, and is adapted experimentally or designally.
- the SMR on determination unit 502 starts counting the elapsed time since the vehicle activation process was started. .
- time T (7) when the elapsed time since the start processing of the vehicle is equal to or longer than the STON elapsed time, the SMR on determination unit 502 determines that the SMR 310 is turned on.
- the SMR on determination unit 502 determines that the SMR 310 is turned on when the ReadyON flag is turned on by the system control unit 402.
- the system control unit 402 executes a vehicle system activation process when the power switch 326 is turned on by the driver, and turns on the ReadyON flag when the activation process is completed.
- the timer unit 504 starts measuring the elapsed time after the SMR 310 is turned on when it is determined that the traveling battery 220 is abnormal and when it is determined that the SMR 310 is turned on. Note that the timer unit 504 may start measuring elapsed time when, for example, both the abnormality determination flag and the SMR on determination flag are turned on. The timer unit 504 may measure the above STON time.
- the elapsed time determination unit 506 determines whether or not the elapsed time after the SMR 310 is turned on is equal to or longer than the standby time. Note that the elapsed time determination unit 506 may turn on the progress determination flag when the elapsed time since the SMR 310 is turned on is equal to or longer than the standby time.
- the standby time is described as being a predetermined time. However, it may be at least a time from when the SMR 310 is turned on until cranking is completed. It may be a time that varies depending on the state.
- the power shutdown request unit 508 transmits a first SMR off request signal to the power shutdown unit 400 of the PM-ECU 320 when the elapsed time since the SMR 310 is turned on is longer than the standby time.
- the abnormality determination unit 500, the SMR on determination unit 502, the timer unit 504, the elapsed time determination unit 506, and the power shutdown request unit 508 are all stored in the memory of the CPU of the battery ECU 260. Although described as functioning as software realized by executing a program, it may be realized by hardware. Such a program is recorded on a storage medium and mounted on the vehicle.
- step (hereinafter, step is referred to as S) 100 battery ECU 260 determines whether or not battery for traveling 220 is abnormal. If it is determined that traveling battery 220 is abnormal (YES in S100), the process proceeds to S102. If not (NO in S100), the process returns to S100 and waits until it is determined that traveling battery 220 is abnormal.
- battery ECU 260 determines whether or not SMR 310 is turned on. If SMR 310 is turned on (YES in S102), the process proceeds to S104. If not (NO in S102), the process returns to S102 and waits until SMR 310 is turned on. Since the method for determining whether or not SMR 310 is turned on is as described above, detailed description thereof will not be repeated.
- battery ECU 260 starts measuring the elapsed time since it was determined that SMR 310 was turned on.
- battery ECU 260 determines whether or not the measured elapsed time is equal to or longer than the standby time. If the elapsed time is equal to or longer than the standby time (YES in S106), the process proceeds to S108. If not (NO in S106), the process returns to S106 and waits until the elapsed time is equal to or longer than the standby time.
- battery ECU 260 transmits a first SMR off request signal to PM-ECU 320.
- the engine 120 is started when cranking of the engine 120 is completed.
- a first SMR off request signal is sent from battery ECU 260 to power shutoff unit 400. After being transmitted (S108), the SMR 310 is turned off.
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Abstract
Description
さらに好ましくは、充電状態検出部は、車両の起動の際に、第2の条件が成立した場合、リレーによって電力供給線の状態が遮断状態から導通状態に切り換わってから待機時間が経過した後に、電力供給線の状態が遮断状態になることを要求する。
Claims (8)
- 回転電機(140)と、前記回転電機(140)に電力を供給するための蓄電装置(220)と、前記蓄電装置(220)と前記回転電機(140)とを接続する電力供給線(222)の状態を導通状態と遮断状態との間で切り換えるためのリレー(310)とを含む車両の車両用制御装置であって、
前記車両の状態について第1の条件が成立した場合に前記電力供給線(222)の状態を前記遮断状態にするための車両制御部(402)と、
前記車両制御部の動作と並行して、前記蓄電装置(220)の充電状態を検出し、検出された前記充電状態を前記車両制御部に送信するとともに、前記蓄電装置(220)の状態について第2の条件が成立した場合に、前記電力供給線(222)の状態を前記遮断状態にするための充電状態検出部(260)と、
前記充電状態検出部(260)および前記車両制御部(402)のうちの少なくともいずれか一方からの要求に応じて、前記リレー(310)によって前記電力供給線(222)の状態を前記遮断状態にするための電源遮断部(400)とを含む、車両用制御装置。 - 前記第2の条件は、前記蓄電装置(220)に異常が発生したという条件である、請求の範囲第1項に記載の車両用制御装置。
- 前記充電状態検出部(260)は、前記車両の起動の際に、前記第2の条件が成立した場合、前記リレー(310)によって前記電力供給線(222)の状態が前記遮断状態から前記導通状態に切り換わってから待機時間が経過した後に、前記電力供給線(222)の状態が前記遮断状態になることを要求する、請求の範囲第2項に記載の車両用制御装置。
- 前記車両は、動力源として搭載される内燃機関(120)をさらに含み、
前記車両制御部(402)は、前記車両の起動の際に、前記第1の条件が成立した場合、前記電力供給線(222)の状態が前記遮断状態から前記導通状態に切り換わるように前記リレー(310)を制御した後に、前記内燃機関(120)を始動させ、
前記予め定められた時間は、前記電力供給線(222)の状態が前記導通状態に切り換わってから前記内燃機関(120)の始動が完了するまでの時間である、請求の範囲第3項に記載の車両用制御装置。 - 前記車両用制御装置は、前記電力供給線(222)の電流を検出するための電流検出部(330)をさらに含み、
前記充電状態検出部(260)は、前記車両の起動の際に、前記電流検出部(330)によって検出された電流がしきい値を超える場合、前記リレー(310)によって前記電力供給線(222)の状態が前記導通状態に切り換わったと判定する、請求の範囲第3項に記載の車両用制御装置。 - 前記リレー(310)は、前記電源遮断部(400)から指示信号を受けて駆動し、
前記充電状態検出部(260)は、前記車両の起動の際に、前記指示信号が前記電力供給線の状態を前記導通状態とすることを示す場合、前記リレー(310)によって前記電力供給線(222)の状態が前記導通状態に切り換わったと判定する、請求の範囲第3項に記載の車両用制御装置。 - 前記車両には、前記車両のシステムを起動させるための操作部(326)が設けられ、
前記車両制御部(402)は、前記操作部(326)に対する運転者の操作に応じて前記車両のシステムの起動処理を開始し、
前記充電状態検出部(260)は、前記車両制御部(402)によって前記起動処理が開始されてから判定時間が経過した場合に、前記リレー(310)によって前記電力供給線(222)の状態が前記導通状態に切り換わったと判定する、請求の範囲第3項に記載の車両用制御装置。 - 前記車両には、前記車両のシステムを起動させるための操作部(326)が設けられ、
前記車両制御部(402)は、前記操作部(326)に対する運転者の操作に応じて前記車両のシステムの起動処理を開始し、
前記充電状態検出部(260)は、前記起動処理が完了した場合に、前記リレー(310)によって前記電力供給線(222)の状態が前記導通状態に切り換わったと判定する、請求の範囲第3項に記載の車両用制御装置。
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| JP2011532861A JP5246339B2 (ja) | 2009-09-28 | 2009-09-28 | 車両用制御装置 |
| US13/498,172 US8583308B2 (en) | 2009-09-28 | 2009-09-28 | Control device for vehicle |
| PCT/JP2009/066738 WO2011036785A1 (ja) | 2009-09-28 | 2009-09-28 | 車両用制御装置 |
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| PCT/JP2009/066738 WO2011036785A1 (ja) | 2009-09-28 | 2009-09-28 | 車両用制御装置 |
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| JP2014110684A (ja) * | 2012-12-03 | 2014-06-12 | Toyota Motor Corp | 蓄電システム |
| JP2016078533A (ja) * | 2014-10-14 | 2016-05-16 | 三菱電機株式会社 | エンジン始動装置 |
| CN111361444A (zh) * | 2020-04-09 | 2020-07-03 | 重庆工业职业技术学院 | 纯电动汽车充电故障诊断方法与装置 |
| CN114132178A (zh) * | 2021-12-24 | 2022-03-04 | 安徽华菱汽车有限公司 | 一种电动车下电方法、装置、设备及计算机可读存储介质 |
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| US10479184B2 (en) * | 2010-09-30 | 2019-11-19 | Evaos, Inc. | Auxiliary electric drive system and vehicle using same |
| JP5598499B2 (ja) * | 2012-06-15 | 2014-10-01 | 株式会社デンソー | 電池監視装置 |
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Also Published As
| Publication number | Publication date |
|---|---|
| US8583308B2 (en) | 2013-11-12 |
| JP5246339B2 (ja) | 2013-07-24 |
| US20120185120A1 (en) | 2012-07-19 |
| JPWO2011036785A1 (ja) | 2013-02-14 |
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