Vehicle control method for pure electric commercial vehicle
A vehicle control and vehicle controller technology, which is applied in the vehicle control field of pure electric commercial vehicles, can solve problems such as unreasonable fault processing sequence, difficulty in troubleshooting, and unreasonable control sequence, so as to avoid on-load cut-off. problems, avoid sticking problems, save the cost of hard wire
Active Publication Date: 2021-06-15
DAYUN AUTOMOBILE CO LTD
View PDF9 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The present invention provides a vehicle control method for pure electric commercial vehicles in order to solve the problems of unreasonable power-on and power-on sequence and accessory control sequence of pure electric commercial vehicles, unreasonable fault processing sequence, and difficulty in troubleshooting.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0104] The present invention will be further described below in conjunction with specific examples.
[0105] A vehicle control method for a pure electric commercial vehicle. The vehicle control is controlled by a combination of an all-in-one controller, a vehicle controller VCU, a battery management system BMS, and a motor controller MCU. This embodiment adopts a five-in-one control device, including the following 11 states:
[0106] (1) High-voltage power-on process: the flow chart is as follows figure 1 Shown:
[0107] ① After the self-inspection of the VCU of the vehicle controller is completed, and after receiving the message that the self-inspection of the battery management system BMS and the five-in-one controller is completed, the CAN message is sent to the battery management system BMS and the five-in-one controller through the controller LAN CAN message High voltage instruction;
[0108] ② After the battery management system BMS receives the high-voltage command f...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a vehicle control method of a pure electric commercial vehicle, and relates to the field of control of pure electric commercial vehicles, and the vehicle control is realized by combining an all-in-one controller, a vehicle control unit (VCU), a battery management system (BMS) and a motor control unit (MCU). The method comprises the following 11 states: a high-voltage power-on process, a high-voltage power-off process, a gear identification and gear shifting method, a driving torque control function, accessory control, fault judgment control, high voltage under fault, brake feedback, whole vehicle safety control, a ramp parking control method and charging overall control. In the control method, a CAN control mode is adopted to replace a traditional hard wire control mode, and a reasonable control method is formulated. According to the whole vehicle control method provided by the invention, the adhesion problem of the high-voltage contactor is avoided to a great extent, the on-load cut-off problem of the contactor can be avoided, the electric quantity of the power battery is supplemented, the safety of the power battery and the dynamic property of the whole vehicle are ensured, the period of troubleshooting of the whole vehicle is shortened, and the difficulty of troubleshooting is reduced.
Description
technical field [0001] The invention relates to the control field of pure electric commercial vehicles, in particular to a vehicle control method for pure electric commercial vehicles. Background technique [0002] The electronic control architecture of pure electric commercial vehicles mainly includes vehicle controllers, all-in-one controllers, power battery systems, main drive motors, gear controllers, etc. In order to ensure the safety and reliability of each link in the process of power on and off, running and charging, each controller can achieve information interaction, the whole vehicle can realize normal power on and off, normal driving under different road conditions, fault handling / downloading, etc. For functions such as power / power limiting, accessory management, and braking energy recovery, it is necessary to formulate a complete set of vehicle control strategies, and formulate detailed procedures for each function point involved. The vehicle control strategy i...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20B60L58/10
CPCB60L15/20B60L58/10Y02T10/72
Inventor 杨志超吴丽娟杨维刚
Owner DAYUN AUTOMOBILE CO LTD