Uphill start controlling method of electric automobile
An electric vehicle and control method technology, applied in electric vehicles, control drives, control devices, etc., can solve the problems of not considering road slope resistance, large differences in vehicle starting response and starting time, etc., to improve starting stability, prevent Start slipping, ensure consistent effect
Inactive Publication Date: 2017-08-29
IAT AUTOMOBILE TECH
View PDF8 Cites 10 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Using the classic PID control method, the road gradient resistance is not considered during the start process; during the start process, there is a big difference in the vehicle start response and start time between slope and no slope
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 1
[0013] The electric vehicle of this embodiment includes a slope sensor, a vehicle controller, a motor controller and a motor, and the slope sensor is electrically connected to the vehicle controller; the vehicle controller is connected to the motor controller through the motor controller The motor is connected, and the vehicle controller includes a PID torque control unit and a slope assist compensation torque control unit. When the vehicle controller detects that the gear signal transmitted by the gear sensor is a forward gear, and the brake pedal switch is in an invalid state, the uphill starting control method of this embodiment is started. Specifically, in this embodiment, the PID torque control unit calculates and generates the normal torque T according to the vehicle speed, the gradient assist compensation torque control unit calculates and generates the assist compensation torque ΔY according to the vehicle speed and the gradient transmitted by the gradient sensor, and s...
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 relates to an uphill start controlling method of an electric automobile, and belongs to the technical field of electric automobiles. According to the uphill start controlling method of the electric automobile, an automobile control unit is involved. The automobile control unit comprises a PID torque controlling unit and a slope auxiliary compensation torque controlling unit. The PID torque controlling unit calculates and generates routine torque T according to the automobile speed. The slope auxiliary compensation torque controlling unit calculates and generates auxiliary compensation torque delta-Y according to the automobile speed and the slope transmitted by a slope sensor. Given torque is set as the sum of the routine torque T and the auxiliary compensation torque delta-Y, and the automobile control unit sends the given torque to a motor controller which is used for controlling a motor to operate. According to the uphill start controlling method, conformity of starting response and starting time of the automobile under various road slope conditions is guaranteed, starting stability of the automobile is enhanced, and slip slope starting is avoided effectively.
Description
technical field [0001] The present invention relates to the technical field of electric vehicles, and more specifically, the present invention relates to a control method for electric vehicles starting uphill. Background technique [0002] Due to the shortage of oil and gas resources and the increasingly prominent environmental pollution problems, electric vehicles, as a new generation of clean energy vehicles, have received more and more attention from the state. With the continuous innovation of electric vehicle technology and the increase of national support, the proportion of electric vehicles in my country has been rising in recent years. With the increasing popularity of electric vehicles, their safety and comfort have also attracted more and more attention. In the existing technology, such as figure 1 The classic PID control method is used as shown, and the road slope resistance is not considered during the starting process; 1) When the road has no slope, the starti...
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 IPC IPC(8): B60L15/20
CPCB60L15/2081B60L2240/12B60L2240/423Y02T10/72
Inventor 刘吉顺王守军张迪
Owner IAT AUTOMOBILE TECH