Control system and method for remotely controlling intelligent moving of vehicle through mobile phone

Abstract

The control system comprises a VCU, an ICM, a BCM, an EPB, a TBOX, an MCU and a mobile phone APP, and the VCU and the ICM / BCM / EPB / TBOX / MCU conduct information interaction in real time through a can bus; the VCU is a vehicle control unit; the CM can display related prompt signals; the mobile phone APP sends forward, backward, stop and other signals to the vehicle-mounted terminal TBOX through wireless signals; the TBOX receives a signal from a mobile phone of a driver through the wireless 4G module; the EPB electronic hand brake can receive the control instruction of the VCU and release and tighten the electronic hand brake; the MCU can receive a torque control instruction of the VCU, and forward and backward power output of the vehicle is carried out. On the basis that the cost is not increased, intelligent advancing and retreating of the vehicle are achieved, safety and controllability are achieved, and the embarrassing situation that shoes are wetted and filled with water due to accumulated water in front of vehicle doors in rainy days, and a driver cannot open the vehicle doors when the two vehicles are parked too close is avoided.

Description

Technical Field

[0001] The present invention relates to the field of new energy vehicles, and in particular to a control system and method for intelligently moving a vehicle remotely controlled by a mobile phone. Background Art

[0002] New energy electric vehicles, especially direct-drive vehicles, do not have components such as gearboxes and can directly use the forward and reverse rotation of the motor to move the vehicle forward and backward.

[0003] Sometimes on rainy days, there may be a lot of water in the parking area of ​​new energy vehicles. If you walk to the door and open the door to start the vehicle, it is likely that your shoes will be filled with water and dirty, resulting in a very bad driving experience; the parking space is narrow or the cars on both sides are parked too close to the target vehicle, making it difficult for us drivers to open the door and start the vehicle. On some very complex roads, the road surface is very narrow. When the driver is not sure whether he can pass through the narrow road reliably and safely, he needs to get off the car to observe the driving conditions of the vehicle; Currently, many cars with autonomous driving functions can realize functions such as automatic parking and automatic warehousing, but the entire vehicle is equipped with many cameras or radar sensors, which are costly and not practical for commercial logistics vehicles. Many truck drivers are very sensitive to prices. Summary of the invention

[0004] The present invention provides a control system and method for intelligently moving a vehicle remotely controlled by a mobile phone, which realizes intelligent forward and backward movement of a vehicle without increasing costs, and is safe and controllable, and solves the embarrassing situation in which shoes get wet due to water accumulation in front of a car door on rainy days, and the driver cannot open the car door because two cars are parked too close to each other.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is: a control system and method for intelligent vehicle moving by mobile phone remote control, including VCU, ICM, BCM, EPB, TBOX, MCU and mobile phone APP, wherein the VCU and ICM / BCM / EPB / TBOX / MCU exchange information in real time through the CAN bus; The VCU is a vehicle controller; The CM will display relevant prompt signals; The mobile phone APP will send forward, reverse, stop and other signals to the vehicle terminal TBOX via wireless signals; The TBOX receives signals from the driver's mobile phone via a wireless 4G module; The EPB electronic handbrake receives control instructions from the VCU to release and tighten the electronic handbrake; The MCU receives the torque control command from the VCU to output the vehicle's forward and reverse power.

[0006] Preferably, the method specifically comprises the following steps: Step S1, when all conditions are met, the VCU is enabled to enter the key remote control vehicle moving mode; Step S2, the VCU controls the vehicle to enter the key remote control vehicle moving mode, guides the vehicle to be powered on with high voltage, and after the high voltage is successfully powered on, the vehicle enters the ready state, and the instrument ICM displays the text "key remote control vehicle moving mode"; Step S3, the BCM will automatically turn on the hazard lights to inform the driver that the key-moving mode has been successfully entered. Another purpose of turning on the hazard lights is to warn traffic participants next to the vehicle to pay attention. If conditions permit, the BCM can control the vehicle warning horn to sound once. Step S4: After the driver confirms that the hazard lights are on, he presses the forward button on the phone, and the TBOX sends a "signal" to the VCU in real time. Step S5, after exiting the vehicle moving mode, the instrument panel no longer displays the relevant words, and the driver can directly get in the vehicle and drive it, and the vehicle will not be powered on and off again.

[0007] Preferably, all conditions for the VCU to enter the key remote control car moving mode in step S1 are: A: The mobile phone sends a message through the APP to start the key-moving mode, and the TBOX receives it correctly and both parties verify the password. The specific encryption and decryption methods can be defined by each OEM. B: VCU receives the intelligent car moving demand signal sent by TBOX = 1; C: VCU will wake up the vehicle network and control the vehicle to get K15 low-voltage power; D: VCU receives the door detection from BCM and it is in the closed state; E: There is no serious fault in the vehicle; F: The vehicle battery SOC is greater than 20% (rated value).

[0008] Preferably, the step S4 specifically includes the following signal operations: ①After receiving the forward signal, the VCU will instruct the EPB to release the parking brake; ②After receiving the reverse signal, the VCU will instruct the EPB to release the parking brake; ③After receiving the stop signal, VCU will instruct EPB to pull the handbrake. After the handbrake is successfully pulled, the vehicle will stop at the current position and wait for the driver to get on the vehicle.

[0009] Preferably, the step S4 also has the following special circumstances: If the EPB fails and cannot execute the brake command, the VCU controls the MCU to output feedback torque to stop the vehicle. This double insurance and redundant design ensures the reliability of parking. Since electric vehicles do not have a real transmission, the gear of the motor output shaft is always in gear meshing with the main reducer on the axle; so when receiving a forward signal, the VCU will send the D gear position to the icm instrument for display, so when receiving a reverse signal, the VCU will send the R gear position to the icm instrument for display, so when receiving a stop signal, the VCU will send the N gear position to the icm instrument for display; After stopping at the target position, the driver needs to operate the "Exit" button on the mobile phone APP. The same signal transmission path is used. After the VCU receives the information to exit the car moving mode, it will command the BCM to control the hazard lights to stop flashing. For vehicles with conditions, the BCM can control the vehicle warning horn to sound once.

[0010] The beneficial effects of adopting the above technical solution are: 1. The present invention realizes the intelligent forward and backward movement of the vehicle without increasing the cost, and is safe and controllable, solving the embarrassing situation that shoes get wet due to water accumulation in front of the car door on rainy days, and the driver cannot open the car door because the two cars are parked too close.

[0011] 2. When the present invention exits the moving mode, the instrument panel no longer displays relevant words, and the driver can directly get in the vehicle and drive it, and the vehicle will not be powered on and off again, which is convenient and quick.

[0012] 3. In the present invention, when the EPB fails and cannot execute the brake command, the VCU controls the MCU to output feedback torque to stop the vehicle; thus, the double insurance and redundant design ensure the reliability of parking. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a control system diagram of the present invention; Figure 2 is a control flow chart of the present invention; Figure 3 It is a schematic diagram of buttons on the mobile phone APP of the present invention. DETAILED DESCRIPTION

[0014] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the present invention and facilitating its implementation.

[0015] like Figures 1 to 3 As shown, the present invention is a control system and method for intelligent vehicle moving by remote control of a mobile phone, which realizes the intelligent forward and backward movement of the vehicle without increasing the cost, and is safe and controllable, and solves the embarrassing situation that shoes get wet due to water accumulation in front of the car door on rainy days, and the driver cannot open the car door because two cars are parked too close.

[0016] Specifically, Figures 1 to 3 As shown, it includes VCU, ICM, BCM, EPB, TBOX, MCU and mobile phone APP. The VCU and ICM / BCM / EPB / TBOX / MCU exchange information in real time through the CAN bus; VCU is the vehicle controller; CM will display relevant prompt signals; The mobile phone APP will send forward, reverse, stop and other signals to the vehicle terminal TBOX through wireless signals; TBOX receives signals from the driver’s mobile phone via a wireless 4G module; The EPB electronic parking brake will receive control instructions from the VCU to release and tighten the electronic parking brake; The MCU will receive the torque control instructions from the VCU to output the vehicle's forward and reverse power.

[0017] The specific steps include: Step S1, when all conditions are met, the VCU is enabled to enter the key remote control vehicle moving mode; Step S2, the VCU controls the vehicle to enter the key remote control vehicle moving mode, guides the vehicle to be powered on with high voltage, and after the high voltage is successfully powered on, the vehicle enters the ready state, and the instrument ICM displays the text "key remote control vehicle moving mode"; Step S3, the BCM will automatically turn on the hazard lights to inform the driver that the key-moving mode has been successfully entered. Another purpose of turning on the hazard lights is to warn traffic participants next to the vehicle to pay attention. If conditions permit, the BCM can control the vehicle warning horn to sound once. Step S4: After the driver confirms that the hazard lights are on, he presses the forward button on the phone, and the TBOX sends a "signal" to the VCU in real time. Step S5, after exiting the vehicle moving mode, the instrument panel no longer displays the relevant words, and the driver can directly get in the vehicle and drive it, and the vehicle will not be powered on and off again.

[0018] All conditions for the VCU to enter the key remote control vehicle moving mode in step S1 are: A: The mobile phone sends a message through the APP to start the key-moving mode, and the TBOX receives it correctly and both parties verify the password. The specific encryption and decryption methods can be defined by each OEM. B: VCU receives the intelligent car moving demand signal sent by TBOX = 1; C: VCU will wake up the vehicle network and control the vehicle to get K15 low-voltage power; D: VCU receives the door detection from BCM and it is in the closed state; E: There is no serious fault in the vehicle; F: The vehicle battery SOC is greater than 20% (rated value).

[0019] Step S4 specifically includes the following signal operations: ①After receiving the forward signal, the VCU will instruct the EPB to release the parking brake; ②After receiving the reverse signal, the VCU will instruct the EPB to release the parking brake; ③After receiving the stop signal, VCU will instruct EPB to pull the handbrake. After the handbrake is successfully pulled, the vehicle will stop at the current position and wait for the driver to get on the vehicle.

[0020] There are also the following special cases in step S4: If the EPB fails and cannot execute the brake command, the VCU controls the MCU to output feedback torque to stop the vehicle. This double insurance and redundant design ensures the reliability of parking. Since electric vehicles do not have a real transmission, the gear of the motor output shaft is always in gear meshing with the main reducer on the axle; so when receiving a forward signal, the VCU will send the D gear position to the icm instrument for display, so when receiving a reverse signal, the VCU will send the R gear position to the icm instrument for display, so when receiving a stop signal, the VCU will send the N gear position to the icm instrument for display; After stopping at the target position, the driver needs to operate the "Exit" button on the mobile phone APP. The same signal transmission path is used. After the VCU receives the information to exit the car moving mode, it will command the BCM to control the hazard lights to stop flashing. For vehicles with conditions, the BCM can control the vehicle warning horn to sound once.

[0021] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above-mentioned concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A control system for intelligent vehicle movement remotely controlled by a mobile phone, characterized in that: It includes VCU, ICM, BCM, EPB, TBOX, MCU and mobile phone APP. The VCU and ICM / BCM / EPB / TBOX / MCU exchange information in real time through the CAN bus; The VCU is a vehicle controller; The CM will display relevant prompt signals; The mobile phone APP will send forward, reverse, stop and other signals to the vehicle terminal TBOX via wireless signals; The TBOX receives signals from the driver's mobile phone via a wireless 4G module; The EPB electronic handbrake receives control instructions from the VCU to release and tighten the electronic handbrake; The MCU receives the torque control command from the VCU to output the vehicle's forward and reverse power.

2. The method for controlling a vehicle to move intelligently by remote control via a mobile phone according to claim 1, characterized in that: The specific steps include: Step S1, when all conditions are met, the VCU is enabled to enter the key remote control vehicle moving mode; Step S2, the VCU controls the vehicle to enter the key remote control vehicle moving mode, guides the vehicle to apply high voltage electricity, and after the high voltage electricity is successfully applied, the vehicle enters the ready state, and the instrument ICM displays the text "key remote control vehicle moving mode"; Step S3, the BCM will automatically turn on the hazard lights to inform the driver that the key-moving mode has been successfully entered. Another purpose of turning on the hazard lights is to warn traffic participants next to the vehicle to pay attention. If conditions permit, the BCM can control the vehicle warning horn to sound once. Step S4: After the driver confirms that the hazard lights are on, he presses the forward button on the phone, and the TBOX sends a "signal" to the VCU in real time. Step S5, after exiting the vehicle moving mode, the instrument panel no longer displays the relevant words, and the driver can directly get in the vehicle and drive it, and the vehicle will not be powered on and off again.

3. The method for controlling a vehicle to move intelligently by remote control via a mobile phone according to claim 1, characterized in that: All conditions for the VCU to enter the key remote control car moving mode in step S1 are: A: The mobile phone sends a message through the APP to start the key-moving mode, and the TBOX receives it correctly and both parties verify the password. The specific encryption and decryption methods can be defined by each OEM. B: VCU receives the intelligent car moving demand signal sent by TBOX = 1; C: VCU will wake up the vehicle network and control the vehicle to get K15 low-voltage power; D: VCU receives the door detection from BCM and it is in the closed state; E: There is no serious fault in the vehicle; F: The vehicle battery SOC is greater than 20% (rated value).

4. The control system and method for intelligent vehicle movement by mobile phone remote control according to claim 1, characterized in that: The step S4 specifically includes the following signal operations: ①After receiving the forward signal, the VCU will instruct the EPB to release the parking brake; ②After receiving the reverse signal, the VCU will instruct the EPB to release the parking brake; ③After receiving the stop signal, VCU will instruct EPB to pull the handbrake. After the handbrake is successfully pulled, the vehicle will stop at the current position and wait for the driver to get on the vehicle.

5. The method for controlling intelligent vehicle movement by remote control via a mobile phone according to claim 1, characterized in that: The step S4 also has the following special circumstances: If the EPB fails and cannot execute the brake command, the VCU controls the MCU to output feedback torque to stop the vehicle. This double insurance and redundant design ensures the reliability of parking. Since electric vehicles do not have a real transmission, the gear of the motor output shaft is always in gear meshing with the main reducer on the axle; so when receiving a forward signal, the VCU will send the D gear position to the icm instrument for display, so when receiving a reverse signal, the VCU will send the R gear position to the icm instrument for display, so when receiving a stop signal, the VCU will send the N gear position to the icm instrument for display; After stopping at the target position, the driver needs to operate the "Exit" button on the mobile phone APP. The same signal transmission path is used. After the VCU receives the information to exit the car moving mode, it will command the BCM to control the hazard lights to stop flashing. For vehicles with conditions, the BCM can control the vehicle warning horn to sound once.

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