High-stability vehicle control system and new energy vehicle

Abstract

The utility model relates to the field of vehicle control, and provides a high-stability vehicle control system and a new energy automobile. The ABS control system is in communication connection with the VCU controller through a T-BOX, the VCU controller is in communication connection with the MCU controller through a CAN line, and the MCU controller is used for controlling the driving motor; the energy recovery system is in communication connection with the VCU controller; when the ABS control system monitors that the wheels slip but are not locked, the ABS control system sends a torque rising request to the VCU controller, and the MCU controller increases the output torque of the driving motor and reduces the recycled energy of the energy recycling system, so that the stability of the vehicle is improved while the wheels are prevented from being locked.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle connection control and provides a vehicle control system with high stability and a new energy vehicle. Background Art

[0002] With the development of national conditions and the support of national policies, pure electric vehicles have developed rapidly. Most domestic car companies have begun to develop pure electric vehicles on a large scale. China has already stepped into the forefront of the world in the field of new energy.

[0003] Under the severe situation of increasingly serious environmental pollution and resource scarcity, pure electric vehicles have become the focus of social attention with their advantages of high energy utilization and zero emissions. However, compared with traditional fuel vehicles, pure electric vehicles face the technical bottleneck of short cruising range. Therefore, pure electric vehicles, under a specific control strategy, convert the heat energy of the brake disc or brake drum during braking into electrical energy and store it in the energy storage device, and then release it when the vehicle has energy demand, thereby increasing the vehicle's cruising range.

[0004] When the VCU system has energy recovery, it needs to control the motor torque and braking force, while the ABS system required by the original vehicle controls the braking force by adjusting the pressure. These two systems are independent of each other and do not interact, but there is overlap in the control objects, which can easily cause the vehicle to lose balance and cause tailspin.

[0005] Application number: 202311107622.X, patent name: Steering wheel steering energy recovery determination method, device and electronic equipment. This patent also cannot improve the above problems. Utility Model Content

[0006] The utility model provides a vehicle control system with high stability, aiming at recovering as much braking energy as possible under the premise of improving braking safety.

[0007] The utility model is implemented as follows: a high-stability vehicle control system, the system comprising:

[0008] ABS control system, the ABS control system is connected to the VCU controller through T-BOX, the VCU controller is connected to the MCU controller through CAN line, and the energy recovery system is connected to the VCU controller;

[0009] When the ABS control system detects that the wheel is slipping but not locked, the ABS control system sends a torque increase request to the VCU controller, and the MCU controller increases the output torque of the drive motor.

[0010] Furthermore, the system comprises:

[0011] EPS system, the EPS system is connected to the VCU controller through T-BOX;

[0012] The ABS control system is connected to the EPS system in communication;

[0013] The EPS system monitors the vehicle's turning angle signal in real time. When the vehicle's turning angle is greater than the turning angle threshold, the VCU controller cancels the energy recovery system.

[0014] Furthermore, the system also includes:

[0015] Vehicle speed sensor, communicating with ABS control system;

[0016] The ABS control system monitors the vehicle speed in real time and determines the current turning angle threshold based on the vehicle speed.

[0017] Furthermore, the system also includes:

[0018] The prompt unit is connected to the VCU controller through a CAN line;

[0019] When the energy recovery system cancels energy recovery, the prompt unit issues a relevant prompt through the prompt unit.

[0020] Furthermore, the prompt unit is any one of an indicator light, a large vehicle screen or a vehicle speaker.

[0021] The utility model is implemented in this way, a new energy vehicle, characterized in that the new energy vehicle is equipped with the above-mentioned stable vehicle control system.

[0022] When the vehicle makes a sharp turn, the stability of the vehicle is poor, so the energy recovery system is controlled to stop energy recovery to improve the stability of the vehicle. In addition, when the vehicle is driving stably, energy recovery is performed as much as possible to increase the vehicle's cruising range. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a vehicle control system with high stability provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0024] The specific implementation methods of the present utility model will be further explained in detail below by describing the optimal embodiments with reference to the accompanying drawings.

[0025] Figure 1 The schematic diagram of the structure of a high-stability vehicle control system provided by the embodiment of the utility model, for the sake of convenience of explanation, only the part related to the embodiment of the utility model is shown, and the system includes:

[0026] ABS control system; the ABS control system is connected to the VCU controller through the T-BOX, and the VCU controller is connected to the MCU controller through the CAN line. The MCU controller is used to control the drive motor;

[0027] An energy recovery system communicatively connected to the VCU controller;

[0028] When the ABS control system detects that the wheels are slipping but not locked, the ABS control system sends a torque increase request to the VCU controller. The MCU controller increases the output torque of the drive motor and reduces the energy recovery system's recovery energy, thereby preventing the wheels from locking and increasing the stability of the vehicle.

[0029] In addition, when the ABS control system detects that the wheel is currently in a locked state, the VCU controller controls the energy recovery system to cancel energy recovery.

[0030] In an embodiment of the utility model, the system further comprises:

[0031] EPS system, the EPS system is connected to the VCU controller through T-BOX;

[0032] The ABS control system communicates with the EPS system via a CAN line;

[0033] The EPS system monitors the vehicle's turning angle signal in real time. When the vehicle's turning angle is greater than the turning angle threshold, the VCU controller uses the energy recovery system to cancel energy recovery. In the case of a large turn, energy recovery is canceled to increase the vehicle's stability. When the vehicle's turning angle is greater than the turning angle threshold, that is, when the vehicle turns slightly, the energy recovery system performs energy recovery normally to increase the vehicle's cruising range.

[0034] In this novel embodiment, the system further comprises:

[0035] The vehicle speed sensor is connected to the ABS control system for communication. The vehicle speed sensor monitors the vehicle speed in real time and determines the current turning angle threshold based on the vehicle speed. The greater the vehicle speed, the smaller the turning angle threshold.

[0036] In an embodiment of the utility model, the system further comprises:

[0037] The prompt unit is connected to the VCU controller through a CAN line;

[0038] When the energy recovery system cancels energy recovery, the prompt unit issues a relevant prompt through the prompt unit. The above prompt unit can be any one of an indicator light, a large vehicle screen or a vehicle speaker, which prompts the driver and passengers through lights, text or voice.

[0039] An embodiment of the utility model further provides a new energy vehicle, on which the above-mentioned stable vehicle control system is integrated, and the new energy vehicle improves vehicle stability while increasing the cruising range of the new energy vehicle as much as possible.

[0040] The utility model has been described exemplarily. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A high-stability vehicle control system, characterized in that: The system comprises: ABS control system, the ABS control system is connected to the VCU controller through T-BOX, the VCU controller is connected to the MCU controller through CAN line, and the energy recovery system is connected to the VCU controller; When the ABS control system detects that the wheel is slipping but not locked, the ABS control system sends a torque increase request to the VCU controller, and the MCU controller increases the output torque of the drive motor.

2. The high-stability vehicle control system according to claim 1, characterized in that: The system comprises: EPS system, the EPS system is connected to the VCU controller through T-BOX; The ABS control system is connected to the EPS system in communication; The EPS system monitors the vehicle's turning angle signal in real time. When the vehicle's turning angle is greater than the turning angle threshold, the VCU controller cancels the energy recovery system and eliminates energy recovery.

3. The high-stability vehicle control system according to claim 2, characterized in that: The system further comprises: Vehicle speed sensor, communicating with ABS control system; The vehicle speed sensor monitors the vehicle speed in real time and determines the current turning angle threshold based on the vehicle speed.

4. The high-stability vehicle control system according to claim 1, characterized in that: The system further comprises: The prompt unit is connected to the VCU controller through a CAN line; When the energy recovery system cancels energy recovery, the prompt unit issues a relevant prompt through the prompt unit.

5. The high-stability vehicle control system according to claim 4, characterized in that: The prompt unit is any one of an indicator light, a large vehicle screen or a vehicle speaker.

6. A new energy vehicle, characterized in that: The new energy vehicle is integrated with a vehicle control system having stability as described in any one of claims 1 to 5.

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