JP2018072139A - Control device of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control device of the vehicle in which a transceiver is less prone to failure.SOLUTION: A side surface in a width direction of the vehicle is provided with side handles 2 and 3. The side handles 2 and 3 are provided with a transceiver 5 for receiving a response signal replied by an electronic key 4 of the vehicle by transmitting a first detection wave and receiving the first detection wave, while transmitting a second detection wave of the frequency different from the first detection wave and receiving the reflection wave when reflected by a detection object such as the other vehicle and obstacles by the second detection wave. An electronic control device 9 mounted on the vehicle detects a proximity state of the electronic key 4 to the vehicle based on reception of the signal that notifies the reception of the response signal from the transceiver 5, while detecting the proximity state of the detection object to the vehicle based on the reception of the signal that notifies the reception of the reflected wave from the transceiver 5.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle control device.

  In a vehicle such as an automobile, when a driver with an electronic key is in proximity to the vehicle while the operation is stopped, the operation of the vehicle is permitted and another vehicle is in proximity to the running vehicle. When this happens, the driver is notified of this. In order to realize this, the vehicle shown in Patent Document 1 is provided with the following transceiver and control unit.

  The transceiver transmits a first detection wave and receives a response signal returned from the electronic key in response to the first detection wave. The control unit detects the proximity state of the electronic key based on the fact that the transceiver has received the response signal, and permits the operation of the vehicle based on the detected state. On the other hand, the transmitter / receiver transmits a second detection wave having a frequency different from that of the first detection wave, and receives a reflected wave when the second detection wave is reflected by a detection target such as another vehicle. The said control part detects the proximity | contact state of the said detection target based on the transmitter / receiver receiving the said reflected wave, and alert | reports it to a driver | operator.

  In the vehicle of Patent Document 1, the transmitter / receiver that transmits / receives the first detection wave and the response signal and the transmitter / receiver that transmits / receives the second detection wave and the reflected wave are shared, thereby reducing the cost. I try to reduce it. Further, the common transceiver is provided on the door mirror of the vehicle so as to realize transmission / reception of the first detection wave and the response signal and transmission / reception of the second detection wave and the reflection wave.

JP-A-10-227161

  By the way, since the door mirror of the vehicle protrudes from the body toward the outside in the width direction of the vehicle, there is a high possibility of contact with an obstacle and other vehicles, and the door mirror transceiver is broken through the contact. Thus, the frequency of exchanging the door mirror together with the transmitter / receiver increases. However, every time the door mirror is exchanged in this way, the transmission / reception function of the transmitter / receiver provided in the door mirror must be adjusted appropriately, and there is a problem that work for that takes time.

  An object of the present invention is to provide a vehicle control device in which a transmitter / receiver is unlikely to fail.

Hereinafter, means for solving the above-described problems and the effects thereof will be described.
A vehicle control device that solves the above problem transmits a first detection wave and receives a response signal returned from the electronic key in response to the first detection wave, while a second frequency having a frequency different from that of the first detection wave. A transmitter / receiver is provided that transmits a detection wave and receives a reflected wave when the second detection wave is reflected by a detection target. Furthermore, the control device detects the proximity state of the electronic key to the vehicle based on the fact that the transceiver has received the response signal, while the detection target of the vehicle is to be detected based on the fact that the transceiver has received the reflected wave. A detection unit for detecting the proximity state is also provided. The transceiver is provided on a side door handle of the vehicle.

  According to this configuration, the side door handle provided with the transmitter / receiver is provided on the side surface in the width direction of the body of the vehicle, and is large from the body toward the outside in the width direction of the vehicle, such as a door mirror. It does not protrude. Therefore, the possibility of contact with an obstacle and other vehicles is low, and the transmitter / receiver of the side door handle is less likely to fail through the contact.

The side door handle provided with the transceiver may be a front door side door handle and a rear seat side door handle in a vehicle.
According to this configuration, since the second detection wave and the reflected wave can be transmitted and received by the transceiver on both the front seat side and the rear seat side of the vehicle, the proximity state of the detection target to the vehicle is detected in a wide range. can do. In addition, even if one transmitter / receiver on the front seat side of the vehicle or the transmitter / receiver on the rear seat side fails, transmission / reception by the other transmitter / receiver is possible. Reliability can be improved.

  The vehicle control device is configured to transmit a first detection wave when the shift lever of the vehicle is at the parking position, and to transmit a second detection wave when the shift lever is at a position other than the parking position. It can be assumed that The apparatus permits the operation of the vehicle when the detection unit detects the proximity state of the electronic key to the vehicle, while the detection unit detects that the proximity state of the detection target to the vehicle is detected by the vehicle. The control part which alert | reports to the driver | operator of is provided.

  According to this configuration, since either one of the first detection wave and the second detection wave is transmitted from the transceiver according to whether or not the shift lever of the vehicle is in the parking position, the first detection wave And the second detection wave are transmitted at the same time, it is possible to suppress noise from interfering with each other.

  Further, the vehicle control device transmits a first detection wave from a transmitter / receiver of the front door side door handle and the rear seat side door handle when the vehicle shift lever is in the parking position. The second detection wave is transmitted from the transmitter / receiver of the front door side door handle and the rear seat side door handle when the vehicle is in the drive position, and the rear door side door handle when the shift lever is in the reverse position. It is conceivable that the second detection wave is transmitted only from the transceiver. The apparatus permits the operation of the vehicle when the detection unit detects the proximity state of the electronic key to the vehicle, while the detection unit detects that the proximity state of the detection target to the vehicle is detected by the vehicle. The control part which alert | reports to the driver | operator of is provided.

  According to this configuration, since either one of the first detection wave and the second detection wave is transmitted from the transceiver according to the position of the shift lever of the vehicle, the first detection wave and the second detection wave Are transmitted simultaneously, it is possible to suppress the generation of noise due to interference with each other. In addition, when the shift lever is in the reverse position, that is, when the vehicle is moving backward, there is a high possibility of approaching an obstacle to park the vehicle, and the driver can drive the vehicle after recognizing that. High nature. In this case, if the second detection wave is also transmitted from the transmitter / receiver on the front seat side of the vehicle, when the obstacle is approached, it is detected as a proximity state of the detection target, and this is notified. The driver may feel annoyed. However, when the shift lever is in the reverse position, the second detection wave is transmitted only from the transmitter / receiver on the rear seat side of the vehicle, so that the driver's troublesomeness described above can be suppressed.

  When the shift lever is in the reverse position, the vehicle control device transmits the second detection wave only from the transmitter / receiver of the rear door side door handle if the vehicle steering wheel is in the neutral position, If the steering wheel is rotated from the neutral position, the second detection wave is transmitted from the transmitter / receiver of the front door side door handle and the rear seat side door handle. It is possible.

  According to this configuration, when the driver is turning the steering wheel from the neutral position when the vehicle is moving backward, there is a possibility that an obstacle may be involved by the vehicle. The proximity state of the detection target (the obstacle) to the vehicle can be detected through transmission / reception by the side transmitter / receiver, and this can be notified to the driver. Therefore, when there is a possibility that an obstacle will be involved when the vehicle is moving backward, the driver can be alerted regarding the involvement.

  In the vehicle control device, the vehicle side door handle is provided with an indicator lamp that is visible from the outside of the vehicle, and the control unit detects the proximity state of the detection target to the vehicle when the detection unit detects the proximity state of the vehicle. It is conceivable that the indicator lamp is configured to be lit.

  According to this configuration, when the proximity state of the detection target is detected based on the approach of another vehicle and the indicator lamp is lit, the driver of the other vehicle can visually recognize it. Therefore, the driver of the other vehicle that has approached sees whether or not the driver (the other vehicle) is recognized by the driver of the vehicle that is the approach target by checking whether or not the indicator lamp is lit. Can be confirmed.

1 is a schematic diagram illustrating an entire vehicle to which a vehicle control device is applied. The flowchart which shows the execution procedure of the transmission / reception process of the transmitter / receiver performed through the electronic control apparatus provided in the apparatus, and the lighting / extinguishing process of the indicator lamp.

Hereinafter, an embodiment of a vehicle control device will be described with reference to FIGS. 1 and 2.
On the side surface of the vehicle body 1 shown in FIG. 1 in the width direction (left-right direction in FIG. 1), a front door side door handle 2 for opening and closing a front door for the vehicle and a rear seat in the vehicle A rear door side door handle 3 for opening and closing the side door is provided. The side door handle 3 for the rear seat is located on the rear side of the vehicle (the lower side in FIG. 1) with respect to the side door handle 2 for the front seat.

  The side door handles 2 and 3 receive a response signal transmitted from the electronic key 4 of the vehicle upon receiving the first detection wave and receiving the first detection wave, while receiving a response signal having a frequency different from that of the first detection wave. A transmitter / receiver 5 is provided that transmits two detection waves and receives a reflected wave when the second detection wave is reflected by a detection target such as another vehicle or an obstacle. The electronic key 4 is carried by the driver of the vehicle and is used when the driver operates the vehicle.

  In the vehicle, an indicator lamp 6 for in-vehicle use is provided in the driver's seat, and indicator lamps 7 and 8 for in-vehicle use are provided in the side door handles 2 and 3. The in-vehicle indicator lamp 6 is for notifying the driver that the proximity state of the detection target is occurring in the vehicle that the driver drives. The indicator lamps 7 and 8 for outside the vehicle are for visual recognition by drivers of other vehicles approaching the vehicle. Whether the driver of the other vehicle that has approached has recognized itself (the other vehicle) by the driver of the vehicle to be approached by checking whether the indicator lamps 7 and 8 are lit. You can check whether or not.

  The vehicle is provided with an electronic control device 9 for controlling various devices. The electronic control device 9 receives a detection signal from an angle sensor 11 that detects a rotation angle with respect to the neutral position of the steering wheel 10 in the vehicle, and a shift position sensor 13 that detects a shift position of the shift lever 12 in the vehicle. The detection signal from is input.

  The shift lever 12 is switched between a plurality of shift positions. Such shift positions include, for example, a parking position for preventing the vehicle from moving when parked, a drive position for moving the vehicle forward, a reverse position for moving the vehicle backward, and the motor and wheels of the vehicle. Neutral position, etc. for interrupting power transmission between them.

  The electronic control unit 9 is connected to the transceiver 5 of the side door handles 2 and 3 so as to be able to perform bidirectional communication, and instructs the transceiver 5 to transmit the first detection wave and the second detection wave, A signal notifying the reception of the response signal and the reflected wave is received from the transceiver 5. The electronic control unit 9 detects a proximity state of the electronic key 4 to the vehicle based on receiving a signal notifying reception of a response signal from the transceiver 5, while receiving a signal notifying reception of a reflected wave from the transceiver 5. In particular, the proximity state of the detection target with respect to the vehicle is detected, and plays a role as a detection unit that detects them. The electronic control unit 9 also performs control related to turning on and off the indicator lamps 6, 7, and 8.

Next, the operation of the vehicle control device will be described.
FIG. 2 is a flowchart showing an execution procedure of transmission / reception processing of the transmitter / receiver 5 and lighting / extinguishing processing of the indicator lamps 6, 7, 8 performed through the electronic control device 9. As a process of step 101 (S101), the electronic control unit 9 determines whether or not the shift lever 12 is in the parking position, in other words, whether or not the vehicle is parked. If the shift lever 12 is in the parking position, the process proceeds to S102.

  In step S102, the electronic control unit 9 sends a predetermined time to the transmitter / receiver 5 provided in the front door side door handle 2 and the transmitter / receiver 5 provided in the rear seat side door handle 3. A command is issued to transmit the first detection wave every time. When the transmitter / receiver 5 receives the command and transmits the first detection wave, if the electronic key 4 is near the vehicle, the electronic key 4 that has received the first detection wave returns a response signal to the transmitter / receiver 5. To do. That is, the electronic key 4 is configured to have such a function.

  The electronic control unit 9 determines whether or not the transmitter / receiver 5 has received a response signal from the electronic key 4 as processing of S103. Specifically, it is determined whether or not a signal for notifying reception of a response signal from the transceiver 5 has been input. The electronic control device 9 detects the proximity state of the electronic key 4 to the vehicle based on the input of a signal notifying the reception of the response signal from the transceiver 5. And when the transmitter / receiver 5 has not received the response signal from the electronic key 4 (when the proximity state of the electronic key 4 to the vehicle is not detected), the electronic control unit 9 once ends this series of processing. . On the other hand, when the transceiver 5 receives the response signal from the electronic key 4 (when the proximity state of the electronic key 4 to the vehicle is detected), the process proceeds to S104.

  The electronic control unit 9 permits the operation of the stopped vehicle as the process of S104. The electronic control device 9 at this time functions as a control unit that permits the operation of the vehicle. Incidentally, the operation of the vehicle permitted in this way includes turning on and off the door lock, starting and stopping the prime mover, and the like. After executing the process of S104, the electronic control unit 9 once ends this series of processes.

  If it is determined in S101 that the shift lever 12 is not in the parking position, the process proceeds to S105. The electronic control unit 9 determines whether or not the shift lever 12 is in the drive position, in other words, whether or not the vehicle is moving forward, in the process of S105. If the shift lever 12 is in the drive position, the process proceeds to S106.

  In step S106, the electronic control unit 9 transmits a predetermined time to the transmitter / receiver 5 provided in the front door side door handle 2 and the transmitter / receiver 5 provided in the rear seat side door handle 3. Command the second detection wave to be transmitted every time. When the transmitter / receiver 5 transmits the second detection wave in response to such a command, if there is a detection target such as another vehicle or an obstacle near the vehicle, the second detection wave is reflected by the detection target. The transceiver 5 receives the wave.

  The electronic control unit 9 determines whether or not the transmitter / receiver 5 has received the reflected wave as the process of S107. Specifically, it is determined whether or not a signal notifying reception of a reflected wave from the transceiver 5 has been input. And when the transmitter / receiver 5 receives the said reflected wave (when the proximity state of the said detection target with respect to a vehicle is detected), it progresses to S108. The electronic control unit 9 lights up the in-vehicle indicator lamp 6 as the process of S108 and lights up the indicator lamps 7, 8 for the outside of the vehicle as the process of S109. The electronic control device 9 when executing the process of S108 functions as a control unit that notifies the driver that the detection target proximity state has occurred in the vehicle that the driver drives. Thereafter, the electronic control unit 9 once ends this series of processing. On the other hand, when it is determined in S107 that the transceiver 5 has not received the reflected wave (when the proximity state of the detection target to the vehicle is not detected), the process proceeds to S113. The electronic control unit 9 turns off the indicator lamps 6, 7, and 8 as the process of S113, and then ends this series of processes.

  If it is determined in S106 that the shift lever 12 is not in the drive position, the process proceeds to S110. As a process of S110, the electronic control unit 9 determines whether or not the shift lever 12 is in the reverse position, in other words, whether or not the vehicle is moving backward. When the shift lever 12 is not in the reverse position, that is, when the shift lever 12 is in the neutral position, the above-described processing from S106 is executed. On the other hand, if the shift lever 12 is in the reverse position in S110, the process proceeds to S111.

  As a process of S111, the electronic control unit 9 determines whether or not the steering wheel 10 is in the neutral position, more specifically, whether or not the steering wheel 10 is within a predetermined rotation angle range including the neutral position. When it is determined that the steering wheel 10 is not within the predetermined rotation angle range and the steering wheel 10 is not in the neutral position, the above-described processing from S106 is executed. On the other hand, when it is determined in S111 that the steering wheel 10 is within the predetermined rotation angle range and the steering wheel 10 is in the neutral position, the process proceeds to S112.

  As the process of S112, the electronic control unit 9 instructs only the transmitter / receiver 5 provided in the rear seat side door handle 3 to transmit the second detection wave every predetermined time. When the transmitter / receiver 5 transmits the second detection wave in response to such a command, if there is a detection target such as another vehicle or an obstacle near the vehicle, the second detection wave is reflected by the detection target. The transceiver 5 receives the wave. Thereafter, the processing after S107 described above is executed.

According to the embodiment described in detail above, the following effects can be obtained.
(1) The side door handles 2 and 3 provided with the transmitter / receiver 5 are provided on the side surface in the width direction of the vehicle body 1, and from the body 1 to the outside in the width direction of the vehicle like a door mirror of the vehicle. It does not protrude greatly toward Therefore, the possibility of contact with an obstacle and another vehicle is low, and the transmitter / receiver 5 of the side door handles 2 and 3 is unlikely to break down through the contact.

  (2) The transceiver 5 is provided in both the front door side door handle 2 and the rear seat side door handle 3. For this reason, the proximity state of the detection target with respect to the vehicle can be detected in a wide range by performing transmission / reception of the second detection wave and the reflected wave by the transmitter / receiver 5 on both the front seat side and the rear seat side of the vehicle. . Moreover, even if one transmitter / receiver 5 breaks down by performing transmission / reception of a 2nd detection wave and a reflected wave with both the transmitter / receiver 5 of the front seat side of the vehicle, and the transmitter / receiver 5 of the rear seat side, Since transmission / reception by the transceiver 5 can be performed, the reliability of transmission / reception by the transceiver 5 can be improved.

  (3) Since either one of the first detection wave and the second detection wave is transmitted from the transceiver 5 depending on whether or not the shift lever 12 of the vehicle is in the parking position, By transmitting the second detection wave at the same time, it is possible to suppress the generation of noise due to interference with each other.

  (4) When the shift lever 12 is in the reverse position, that is, when the vehicle is moving backward, there is a high possibility that the vehicle will approach an obstacle to park the vehicle. There is a high possibility. Specifically, when there is an obstacle near the transmitter / receiver 5 on the front seat side when the vehicle is reversing, there is a high possibility that the driver recognizes the obstacle.

  In this case, if the second detection wave is transmitted from both the front-seat transceiver 5 and the rear-seat transceiver 5 of the vehicle, the front-seat transceiver 5 receives the reflected wave. Based on this, there is a risk of detecting the proximity state of the obstacle to the vehicle. As a result, the detection of the proximity state of the obstacle to the vehicle becomes sensitive, and the detection is frequently notified by lighting of the in-vehicle indicator lamp 6, and the driver may feel annoyed.

  However, when the shift lever 12 is in the reverse position, the second detection wave is transmitted only from the transmitter / receiver 5 on the rear seat side of the vehicle. For this reason, it can suppress detecting the proximity | contact state of the said obstacle with respect to a vehicle sensitively based on the transmitter / receiver 5 of the front seat side receiving a reflected wave. Therefore, accompanying the sensitive detection of the proximity state of the obstacle with respect to the vehicle, it is possible to prevent the detection from being frequently informed by the lighting of the in-vehicle indicator lamp 6, and thus the driver is bothered as described above. I can suppress memorization.

  (5) When the driver is turning the steering wheel 10 from the neutral position when the vehicle is moving backward, in other words, when the steering wheel 10 is outside the predetermined rotation angle range including the neutral position, There is a risk of entrainment. In such a situation, the second detection wave is transmitted not only from the transceiver 5 on the rear seat side but also from the transceiver 5 on the front seat side. Therefore, the proximity state of the obstacle to the vehicle can be detected through transmission / reception by the transmitter / receiver 5 on the front seat side of the vehicle, and this can be notified to the driver by lighting the in-vehicle indicator lamp 6. Therefore, when there is a possibility that an obstacle will be involved when the vehicle is moving backward, the driver can be alerted regarding the involvement.

  (6) When the proximity state of the detection target is detected based on the approach of another vehicle and the indicator lamps 7 and 8 for the outside of the vehicle are lit, the driver of the other vehicle can visually recognize it. Accordingly, the driver of the other vehicle approaching the vehicle recognizes himself (the other vehicle) by the driver of the vehicle to be approached by checking whether the indicator lamps 7 and 8 are lit. It can be confirmed whether or not.

In addition, the said embodiment can also be changed as follows, for example.
The detection of the proximity state of the detection target with respect to the vehicle is notified to the driver by turning on the indicator lamp 6, but such notification may be made by sound. Further, both notification by sound and notification by lighting of the indicator lamp 6 may be performed.

  When the shift lever 12 is in the reverse position, regardless of the position of the steering wheel 10, the second detection wave may be transmitted from both the front seat side transmitter / receiver 5 and the rear seat side transmitter / receiver 5. Good.

When the shift lever 12 is in the reverse position, the second detection wave may be transmitted only from the transceiver 5 on the rear seat side regardless of the position of the steering wheel 10.
The present invention may be applied to a vehicle in which only one side door handle is provided on each side of the body in the width direction of the vehicle.

  DESCRIPTION OF SYMBOLS 1 ... Body, 2 ... Side door handle, 3 ... Side door handle, 4 ... Electronic key, 5 ... Transmitter / receiver, 6 ... Indicator lamp, 7 ... Indicator lamp, 8 ... Indicator lamp, 9 ... Electronic control unit, 10 ... Steering Wheel, 11 ... angle sensor, 12 ... shift lever, 13 ... shift position sensor.

Claims (6)

While transmitting the first detection wave and receiving the response signal returned by the electronic key in response to the first detection wave, the second detection wave is transmitted while transmitting the second detection wave having a frequency different from that of the first detection wave. A transmitter / receiver that receives a reflected wave when reflected by a detection target;
The transmitter / receiver detects the proximity state of the electronic key to the vehicle based on the reception of the response signal, while the transmitter / receiver detects the proximity state of the detection target to the vehicle based on the reception of the reflected wave. A detection unit;
In a vehicle control device comprising:
The vehicle control device, wherein the transmitter / receiver is provided on a side door handle of the vehicle.   The vehicle control device according to claim 1, wherein the side door handle provided with the transceiver is a front door side door handle and a rear seat side door handle in the vehicle. The first detection wave is transmitted from the transceiver when the shift lever of the vehicle is in the parking position, while the second detection wave is transmitted from the transceiver when the shift lever is in a position other than the parking position. It is configured as
When the proximity of the electronic key to the vehicle is detected by the detection unit, the operation of the vehicle is permitted, and when the proximity of the detection target to the vehicle is detected by the detection unit, this is indicated as driving the vehicle. The vehicle control device according to claim 1, further comprising a control unit that informs a person. When the shift lever of the vehicle is in the parking position, a first detection wave is transmitted from the transmitter / receiver of the front door side door handle and the rear seat side door handle, and the shift lever is in the drive position. Sometimes the second detection wave is transmitted from the transmitter / receiver of the front seat side door handle and the rear seat side door handle, respectively, and when the shift lever is in the reverse position, the rear seat side door The second detection wave is transmitted from only the transceiver of the handle,
When the proximity of the electronic key to the vehicle is detected by the detection unit, the operation of the vehicle is permitted, and when the proximity of the detection target to the vehicle is detected by the detection unit, this is indicated as driving the vehicle. The vehicle control device according to claim 2, further comprising a control unit that informs a person.   When the shift lever is in the reverse position, if the steering wheel of the vehicle is in the neutral position, the second detection wave is transmitted only from the transceiver of the side door handle for the rear seat, while the steering wheel is in the neutral position. The said 2nd detection wave is each transmitted from the said transmitter / receiver of the said side door handle for the front seats, and the side door handle for the said rear seats, if it is operated from the side. Vehicle control device. The side door handle is provided with an indicator lamp that is visible from the outside of the vehicle,
The control of the vehicle according to any one of claims 3 to 5, wherein the control unit is configured to turn on the indicator lamp when the detection unit detects the proximity state of the detection target to the vehicle. apparatus.

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