WO2018196384A1 - New-energy automobile wireless charging alignment system - Google Patents

Abstract

A new-energy automobile wireless charging alignment system, comprising an identification line (1), a parking stopper (3) and an imaging device. The parking stopper (3) limits the reverse position of a vehicle, the imaging device together with the identification line (1) limit the relative position of the vehicle with respect to the identification line (1). A driver can adjust the position of a vehicle body in a timely manner according to a position image, fed back by the imaging device, of the vehicle body with respect to the identification line (1), effectively reducing the difficulty of accurate alignment of a new-energy automobile with a wireless charging coil, thereby effectively shortening, to a certain extent, the time taken for accurate alignment of a new-energy automobile with a wireless charging coil, improving the charging efficiency of wireless charging system.

Description

A new energy vehicle wireless charging alignment system

This application claims priority to Chinese Patent Application No. 201710283038.8, entitled "A New Energy Vehicle Wireless Charging Alignment System", filed on April 26, 2017, the entire contents of which are incorporated by reference. In this application.

Technical field

The present invention relates to the field of wireless charging technologies, and in particular, to a wireless charging alignment system for a new energy vehicle.

Background technique

With the development of wireless charging technology, more and more people in the industry believe that wireless charging is the development direction of new energy electric vehicle charging, and has been upgraded to the national technology strategy level.

In order to maximize the charging efficiency of the wireless charging system, the wireless charging coil of the wireless charging system needs to be accurately aligned with the new energy electric vehicle. When the wireless charging coil and the new energy electric vehicle have a large deviation deviation or the vehicle is in the charging process When the wireless charging coil is preset distance, the wireless charging system needs to automatically process and alarm.

In the prior art, the alignment of the new energy vehicle and the wireless charging system is generally realized by the driver during the parking process, and the driver's driving technology is highly demanded, and the driver needs to repeatedly adjust the position of the new energy vehicle to ensure the new energy vehicle and the wireless. The charging coil of the charging system is accurately aligned, resulting in the charging efficiency of the wireless charging system being unguaranteed.

Therefore, how to shorten the accurate alignment time of the wireless charging coil of the new energy vehicle and the wireless charging system to improve the charging efficiency of the wireless charging system has become a technical problem to be solved by those skilled in the art.

Summary of the invention

In view of this, the present invention provides a wireless charging alignment system for a new energy vehicle to shorten the accurate alignment time of the wireless charging coil of the new energy vehicle and the wireless charging system, so as to improve the charging efficiency of the wireless charging system.

To achieve the above object, the present invention provides the following technical solutions:

A wireless charging alignment system for new energy vehicles, including:

An identification line disposed on the ground, the number of the identification lines being two and respectively located in the wireless charging system Both sides of the wireless charging coil;

a parking limiter disposed on the marking line;

An image device capable of displaying an image of the relative position of the vehicle relative to the identification line and capable of providing the driver with an image of the relative position of the vehicle relative to the identification line.

Preferably, in the above new energy vehicle wireless charging alignment system, the method further comprises:

A position detecting device is provided on the ground for prompting the driver whether the vehicle is in a aligning position, and the position detecting device is communicatively coupled to a controller of the wireless charging system.

Preferably, in the above-mentioned new energy vehicle wireless charging alignment system, the position detecting device is a distance sensor, and the number of the distance sensors is two, and the distance sensor is located outside the two identification lines.

Preferably, in the above new energy vehicle wireless charging alignment system, the position detecting device comprises:

Protecting the outer casing, the inside of the protective casing is provided with a cavity, and the upper end of the protective casing is an open end;

a post disposed in the cavity and perpendicular to a bottom wall of the protective casing, the number of the pillars being at least four, and the pillars are evenly distributed along an inner wall of the cavity;

a travel switch disposed in the inner cavity of the outer casing;

An upper cover for closing the protective casing and capable of pressing the travel switch to close the travel switch, the upper cover being connected to a side wall of the protective casing by a folding rubber.

Preferably, in the above-mentioned new energy vehicle wireless charging alignment system, the upper cover plate is provided with a protection column corresponding to the position of the pillar.

Preferably, in the wireless energy charging and aligning system of the new energy vehicle, the protective casing is a steel protective casing or an iron protective casing, and the upper cover is a steel upper cover or an iron upper cover.

Preferably, in the above-mentioned new energy vehicle wireless charging alignment system, the travel switch is a waterproof travel switch.

Preferably, in the above-mentioned new energy vehicle wireless charging alignment system, further comprising a spring sleeved on the outer wall of the pillar, the spring end being connected to the bottom wall of the protective casing, and the other end and the upper cover Offset.

Preferably, in the above-mentioned new energy vehicle wireless charging alignment system, the protective casing has a rectangular parallelepiped shape. The outer casing is protected by four, and the pillars are located at four corner positions of the rectangular protective casing.

Preferably, in the above-mentioned new energy vehicle wireless charging alignment system, the image device is mounted on the rear side of the vehicle body of the vehicle.

It can be seen from the above technical solution that the wireless energy charging and aligning system for a new energy vehicle provided by the present invention includes a marking line, a parking limiter and an image device. In this solution, the parking limiter limits the reverse position of the vehicle, and the image device and the identification line cooperate to limit the relative position of the vehicle and the marked line. The driver timely adjusts the position of the vehicle body according to the position image of the vehicle body relative to the identification line fed back by the image device, thereby effectively reducing the difficulty of accurately aligning the new energy vehicle with the wireless charging coil, thereby effectively shortening the new energy vehicle to a certain extent. The accurate alignment time of the wireless charging coil improves the charging efficiency of the wireless charging system.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic structural diagram of a wireless charging alignment system for a new energy vehicle according to an embodiment of the present invention;

2 is a schematic structural diagram of a position detecting apparatus according to an embodiment of the present invention;

3 is a top plan view of a position detecting device according to an embodiment of the present invention.

1, identification line, 2, wireless charging coil, 3, parking limiter, 4, position detection device, 41, protective casing, 42, pillar, 43, travel switch, 44, upper cover, 45, folding rubber, 46 , protection column, 47, spring, 5, controller.

detailed description

The invention discloses a wireless charging alignment system for a new energy vehicle, so as to shorten the accurate alignment time of the wireless charging coil of the new energy vehicle and the wireless charging system, so as to improve the charging efficiency of the wireless charging system.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Referring to FIG. 1 and FIG. 3, FIG. 1 is a schematic structural diagram of a wireless charging alignment system for a new energy vehicle according to an embodiment of the present invention; FIG. 2 is a schematic structural diagram of a position detecting apparatus according to an embodiment of the present invention; A top view of the position detecting device provided by the example.

The invention discloses a wireless charging alignment system for a new energy vehicle, comprising an identification line 1, a parking limiter 3 and an imaging device.

The identification line 1 is disposed on the ground, and the number of the identification lines 1 is two and located on both sides of the wireless charging coil 2 of the wireless charging system. Preferably, the distance between the two identification lines 1 is greater than the width of the vehicle body. The identification line 1 provides a position reference for the driver to reverse the vehicle, which reduces the difficulty for the driver to accurately align the new energy electric vehicle with the wireless charging coil 2.

The wireless charging coil 2 is located between the two identification lines 1.

The marking line 1 is set on the ground and does not protrude from the ground to a high distance, so as to avoid affecting other activities on the ground, and is usually made by painting dash or reflective tape.

The parking stopper 3 is disposed on the ground and located on the marking line 1. When the vehicle is backed up, the vehicle can be prevented from continuing to retreat. The parking stopper 3 makes it unnecessary for the driver to consider the positional deviation of the vehicle body with respect to the front-rear direction of the wireless charging coil 2 when parking. When the vehicle is reversed to the parking stopper 3, the wheel is blocked and the vehicle is stopped.

The imaging device is capable of displaying an image of the relative position of the vehicle relative to the marker line 1 during reverse driving and is capable of providing the driver with an image of the relative position of the vehicle relative to the marker line 1. The image device can generate an image of the position of the vehicle body relative to the identification line 1 during the vehicle reversing process, and can feed the image back to the driver. The driver timely adjusts the position of the vehicle body according to the image of the image device, and shortens the new position to some extent. The exact alignment time of the energy car and the wireless charging coil 2.

In this solution, the image device is matched with the identification line 1, and the driver adjusts the position of the vehicle body in time according to the position image of the vehicle body with respect to the identification line 1 fed back by the image device, thereby effectively reducing the accurate alignment between the new energy vehicle and the wireless charging coil 2. Difficulty, thus effectively shortening the accurate alignment time of the new energy vehicle and the wireless charging coil 2 to a certain extent, and improving the charging efficiency of the wireless charging system.

In a specific embodiment of the solution, if the reversing image system is installed on the new energy vehicle, the reversing image system is the image device, and the vehicle body does not need to be modified. If the reversing image system is not installed on the new energy vehicle, It is necessary to modify the car body and install an image system on the car body. Image The system includes an image acquisition system capable of acquiring a position corresponding to the vehicle body and the identification line 1, and an image display system capable of displaying an image so that the driver can see the image information collected by the image acquisition system.

In order to further improve the reliability of the wireless charging alignment system for new energy vehicles, the wireless charging alignment system for new energy vehicles provided by this solution also includes:

A position detecting device 4 is provided on the ground and between the two identification lines 1 for prompting the driver whether the vehicle is in the exact alignment position, and the position detecting device 4 is communicatively coupled to the controller 5 of the wireless charging system.

When the new energy vehicle and the wireless charging coil 2 are accurately aligned, the position detecting device 4 transmits an accurate alignment signal to the controller 5, and the controller 5 controls the power conversion component to output the corresponding power to charge the new energy vehicle as a new energy source. When the car and the wireless charging coil 2 are not accurately aligned or are driven away from the wireless charging coil 2, the position detecting means 4 transmits a signal that is not accurately aligned to the controller 5, and the controller 5 controls the power converting element to be inoperative or to stop operating.

The controller 5 of the wireless charging system is a total control device for the wireless charging system of the electric vehicle, and has a power conversion component, an information acquisition component, a control component, a communication component, a local human-machine interaction component, and an acousto-optic prompt component, and the wireless charging coil 2 and the control 5 communication connection.

In one embodiment of the present solution, the position detecting device 4 is a distance sensor, and the number of distance sensors is two, and the distance sensor is located outside the two identification lines 1. The distance sensor is located outside the two identification lines 1 and the two distance sensors are respectively located on two sides of the space surrounded by the two identification lines 1. Preferably, the distance sensor is equal to the distance from the ipsilateral identification line 1 and can detect the positional deviation of the middle of the vehicle body relative to the identification line 1 and the distance of the vehicle body relative to the wireless charging coil 2, when the vehicle body is positioned relative to the identification line 1. When the deviation exceeds the preset range, the distance sensor sends an alarm to prompt the driver to adjust the position of the vehicle body. When the position deviation of the vehicle body relative to the identification line 1 does not exceed the preset range, the distance sensor does not issue an alarm. Specifically, when the position of the vehicle body relative to the position of the identification line 1 is close to which position sensor, which position sensor issues an alarm, prompting the driver to adjust the direction of the vehicle body. When the vehicle body is in contact with the parking limiter 3, the distance sensor detects that the vehicle body is in the exact alignment position. At this time, the distance sensor sends a signal to the controller 5, and the controller 5 controls the power conversion component to output the corresponding power to perform the new energy vehicle. Charging, when the vehicle body is driven away, the distance sensor detects that the distance between the vehicle body and the wireless charging coil 2 is greater than a preset distance, and at this time, the distance sensor sends a signal to the controller 5, and the controller 5 Control the power conversion component to not work or stop working.

In another embodiment of the present solution, the position detecting device 4 is located between the two identification lines 1. Preferably, the position detecting device 4 is located directly below the tire after the vehicle is accurately aligned.

The position detecting device 4 in this embodiment includes a protective casing 41, a stay 42, a stroke switch 43, and an upper cover 44.

The inside of the protective casing 41 is provided with a cavity, and the strut 42 and the stroke switch 43 are both located in the cavity. In this embodiment, the upper end of the protective casing 41 is an open end for facilitating the mounting of the strut 42 and the travel switch 43.

The number of the pillars 42 is at least four and perpendicular to the bottom wall of the protective casing 41. When the tire of the vehicle is located on the position detecting device 4, the pillars 42 can function to support the tire, and in order to ensure stable support for the tire, The struts 42 are evenly distributed along the inner wall of the cavity.

The travel switch 43, the travel switch 43 is closed, and a signal is transmitted to the controller 5, and the closing of the travel switch 43 is achieved by the pressing of the tire. After the tire is removed, the travel switch 43 is automatically disengaged.

The upper cover 44 is used to close the open end of the protective casing 41, so that the position detecting device 4 has waterproof performance, and protects the stroke switch 43 to extend the service life of the position detecting device 4.

The tire is directly pressed against the upper cover 44, and the upper cover 44 is lowered to press the stroke switch 43 to close the stroke switch 43. The upper cover 44 and the side wall of the protective casing 41 are connected by a folding rubber 45. When the tire leaves the position detecting device 4, the upper cover 44 rises under the elastic force of the folding rubber 45, and the stroke switch is no longer pressed.

Preferably, the number of position detecting devices 4 is plural, and the plurality of position detecting devices 4 are disposed on the same straight line, and the straight line where the plurality of position detecting devices 4 are located is perpendicular to the marking line 1.

Preferably, the number of position detecting devices 4 is an even number, wherein the two position detecting devices 4 are located directly below the tire at the exact alignment position of the vehicle.

When the tire is located directly above the position detecting device 4 of the exact alignment position of the vehicle, the travel switch 43 sends a signal to the controller 5, and the controller 5 controls the control power conversion element to output the corresponding power to charge the new energy vehicle;

When the tire is located on the other position detecting device 4, the limit switch 43 of the corresponding position detecting device 4 sends a signal to the controller 5, and the controller 5 controls the power conversion element to be inoperative;

When the vehicle leaves the wireless charging system, the travel switch 43 sends a signal to the controller 5, and the controller 5 The control power conversion element stops working.

As shown in FIG. 1, the position detecting device 41 and the position detecting device 46 are positions of the tire when the vehicle is accurately aligned, and the position detecting device 42, the position detecting device 43, the position detecting device 44, and the position detecting device 45 are located at the position detecting device 41 and Between the position detecting devices 46.

The wheel is pressed against the position detecting device 41 and the position detecting device 46. The position detecting device 41 and the position detecting device 46 send a signal to the controller 5, and the controller 5 detects that the detecting device 1 and the position detecting device 46 are simultaneously depressed. With the sound and light prompt, the position indicator of the controller 5 is lit normally, and the speaker of the controller 5 also prompts that the car has reached the specified accurate position, and the entire parking process is completed; if the new energy vehicle has left and right deviation, then the wheel is not At the same time, it will be pressed on the sensor 1 and the sensor 6. If the position detecting device 44 or the position detecting device 45 is depressed, the vehicle will be prompted to the left, and if the position detecting device 42 or the position detecting device 43 is depressed, the vehicle will be biased. Right, when the position detecting device 4 is not pressed, the controller 5 is silent, and the number of sensors can be increased and decreased according to the accuracy requirements of the site position detection, and the principle is the same.

The upper cover 44 is provided with a protection pillar 46 corresponding to the position of the pillar 42. During the pressing process, the protection pillar 46 is attached to the upper end surface of the pillar 42. The installation of the protection pillar 46 can protect the travel switch 43 to avoid certain protection. The depression distance of the upper cover 44 to the stroke switch 43 exceeds the limit of the stroke switch 43.

The protective casing 41 is a steel protective casing or an iron protective casing, and the upper cover 44 is a steel upper cover or an iron upper cover. The protective casing 41 and the upper cover 44 can also be made of other metal materials having higher strength to ensure the strength of use of the protective casing 41 and the upper cover 44.

The stroke switch 43 is a waterproof stroke switch, which further improves the waterproof performance of the position detecting device 4 and prolongs the service life of the position detecting device 4.

The position detecting device 4 further includes a spring 47 sleeved on the outer wall of the strut 42. One end of the spring 47 is connected to the bottom wall of the protective casing 41, and the other end is abutted against the upper cover 44. The spring 47 is designed to reset the upper cover 44. The auxiliary function ensures that the upper cover 44 can be reset, improving the reliability of the position detecting device 4.

Preferably, the protective casing 41 is a rectangular parallelepiped protective casing, the number of the pillars 42 is four, and the pillars 42 are located at four corner positions of the rectangular parallelepiped protective casing. The protective casing 41 can also be cylindrically protected The outer casing, the pillars 42 are evenly distributed along the inner circumference of the cylindrical protective casing

The image device is installed on the rear side of the vehicle body to facilitate collecting the position information of the vehicle body relative to the identification line 1. Preferably, the width of the dimension line in the image display system of the influencing device is equal to the width between the marker lines 1. When the longer side of the dimension line coincides with the marker line 1, the vehicle body is located at the exact alignment position as long as the line is along Reversing.

After the driver stops the vehicle, the wireless charging can be started by the mobile phone software, and the controller 5 determines that the vehicle is stopped after the signal of the position detecting device 4, and then controls the power conversion component to output the corresponding power to charge the new energy vehicle. If the controller 5 judges that the vehicle is not stopped, the power conversion element does not work or stops working, so that the wireless charging security is greatly guaranteed.

The wireless energy charging alignment system of the new energy vehicle provided by the scheme is simple, low in cost, strong in operability, and solves the problem of parking difficulty, realizing automatic real-time detection of position information by the wireless charging system, thereby realizing wireless charging. The entire process of the system is automated.

Installation of wireless charging alignment system for new energy vehicles:

In the first step, the parking limiter 3 is installed on the ground, the parking limiter 3 can be an ordinary parking limiter 3; in the second step, the vehicle is driven into the charging area of the wireless charging coil 2, and the vehicle is stopped and drawn. In the third step, the vehicle is driven away, and the position detecting device 4 is placed in the corresponding position, the signal line is connected to the controller 5, and the corresponding remote signal collecting port is connected according to the position number of the position detecting device 4; Step, install the reversing image system on the car. When the vehicle has just left the standard alignment charging position, check the image system display and mark the marking line 1 on the ground.

The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but the scope of the invention is to be accorded

Claims (10)

A wireless charging alignment system for a new energy vehicle, characterized in that it comprises: An identification line (1) disposed on the ground, the number of the identification lines (1) being two and respectively located on two sides of the wireless charging coil (2) of the wireless charging system; a parking limiter (3) disposed on the marking line (1); An image device capable of displaying an image of the relative position of the vehicle with respect to the identification line (1) and capable of providing the driver with an image of the relative position of the vehicle relative to the identification line (1). The wireless energy charging and aligning system for a new energy vehicle according to claim 1, further comprising: A position detecting device (4) is provided on the ground for prompting the driver whether the vehicle is in a aligning position, and the position detecting device (4) is communicatively coupled to a controller (5) of the wireless charging system. The wireless energy charging and aligning system for a new energy vehicle according to claim 2, wherein the position detecting device (4) is a distance sensor, the number of the distance sensors is two, and the distance sensor is located at two. The outside of the identification line (1). The wireless energy charging and aligning system for a new energy vehicle according to claim 2, wherein the position detecting device (4) comprises: a protective casing (41), a cavity is disposed inside the protective casing (41), and an upper end of the protective casing (41) is an open end; a pillar (42), the pillar (42) is disposed in the cavity and perpendicular to a bottom wall of the protective casing (4), the number of the pillars (42) is at least four, and the pillar (42) evenly distributed along the inner wall of the cavity; a travel switch (43) disposed in the inner cavity of the housing; An upper cover (44) for closing the protective casing (41) and capable of pressing the travel switch (43) to close the travel switch (43), the upper cover (44) and the protective casing The side walls of (41) are connected by a folding rubber (45). The wireless energy charging alignment system for a new energy vehicle according to claim 4, wherein The upper cover (44) is provided with a protection post (46) corresponding to the position of the post (42). The wireless charging alignment system for a new energy vehicle according to claim 4, wherein the protective casing (41) is a steel protective casing or an iron protective casing, and the upper cover (44) is steel. Cover or iron top cover. The wireless energy charging alignment system for a new energy vehicle according to claim 4, wherein the travel switch (43) is a waterproof travel switch. A wireless charging alignment system for a new energy vehicle according to claim 4, further comprising a spring (47) sleeved on an outer wall of said pillar (42), said spring (47) having one end and said protective casing The bottom wall of (41) is connected, and the other end is opposed to the upper cover (44). The wireless energy charging and aligning system for a new energy vehicle according to claim 4, wherein the protective casing (41) is a rectangular parallelepiped protective casing, and the number of the pillars (42) is four, and the pillars are (42) located at four corner positions of the rectangular protective casing. The wireless energy charging alignment system for a new energy vehicle according to claim 1, wherein said image device is mounted on a rear side of a vehicle body of said vehicle.

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