Vehicle braking method and device, vehicle, electronic equipment and storage medium
A vehicle braking and vehicle technology, which is applied in the direction of control devices, control drives, vehicle components, etc., and can solve problems such as braking methods that cannot be provided by electric vehicles with dual motors
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0068] This embodiment provides a vehicle braking method, the braking method is suitable for an electric vehicle, and the electric vehicle includes a first motor and a second motor. The executive subject of this embodiment is a vehicle braking device, which can be installed on an electric vehicle.
[0069] Such as figure 2 As shown, it is a schematic structural diagram of the electric vehicle provided in this embodiment, the electric vehicle includes a first motor, a first motor controller, a second motor, a second motor controller, a vehicle braking device, a vehicle battery and a battery management system , wherein the vehicle braking device can communicate with the first motor controller, the second motor, and the second motor controller of the first motor based on a controller area network (CAN), so as to control the first motor and the second motor controller. The second motor takes control.
[0070] Such as image 3 As shown, it is a schematic flow chart of a vehicle...
Embodiment 2
[0094] Due to the different loads of electric vehicles, the motor models used by each electric vehicle are different, and different types of motors will have different maximum braking torques. In some cases, considering the use scenarios and functional limitations of electric vehicles, such as engineering electric vehicles with low speed, the electric vehicle is only equipped with dual motors with a small maximum braking torque. In this case, braking may occur. The problem of insufficient dynamic torque. That is to say, the sum of the maximum braking torque output by the first motor and the second motor is less than the total braking torque required by the vehicle.
[0095] In order to solve the above problem of insufficient braking torque, Figure 5 It is a schematic flowchart of another vehicle braking method provided in this embodiment.
[0096] Such as Figure 5 As shown, as an implementable manner, on the basis of the above embodiments, optionally, after determining th...
Embodiment 3
[0106] On the basis of the above-mentioned embodiments, during the motor braking process of the electric vehicle, the vehicle battery is always in a charging state. In order to avoid damage to the vehicle battery during the motor braking process and ensure the safety of the vehicle battery, this implementation The example provides yet another vehicle braking method.
[0107] Such as Image 6 As shown, it is a schematic flow chart of another vehicle braking method provided in this embodiment. As an implementable manner, on the basis of the above-mentioned embodiments, optionally, after determining multiple braking torques according to the total braking torque Before the candidate motor braking torque group, also include:
[0108] Step 108, judging whether the motor can be used for vehicle braking according to the state of the vehicle battery;
[0109] If so, the method of determining the first braking torque and the second braking torque based on the total braking torque desc...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More