Cruise control torque control method and system

A technology of cruising torque and control method, which is applied to control drive, control device, electric vehicle, etc., can solve the problems of not reflecting the real-time state of the vehicle, poor torque control accuracy, slow response speed, etc., to ensure comfort and response speed. , The effect of improving torque control accuracy
CN109624979AActive Publication Date: 2019-04-16BEIJING JINGWEI HIRAIN TECH CO INC
5 Cites 24 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING JINGWEI HIRAIN TECH CO INC
Publication Date
2019-04-16

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a cruise control torque control method and system. The method comprises the steps of calculating and obtaining an acceleration difference value between a vehicle target acceleration value and an actual acceleration value; on the basis of the acceleration difference value and a preset acceleration threshold value, judging whether or not acceleration torque compensation is involved or not, and obtaining a judging result; on the basis of the judging result, calculating and obtaining a target torque; according to the current available maximum power of a vehicle battery andthe current available maximum torque of a motor, controlling the target torque, and obtaining the target output torque of the whole vehicle. Torque control response under different working conditionsunder the cruise control state is achieved, acceleration and other power parameters are introduced for controlling the torque from the vehicle dynamics angle, and the torque control precision is improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of new energy vehicle vehicle control, in particular to a constant speed cruise torque control method and system. Background technique

[0002] At present, the constant speed cruise torque control of pure electric vehicles usually adopts the PI (proportional integral, proportional integral) adjustment torque control method based on the difference between the current vehicle speed and the target vehicle speed. PI parameters are adjusted.

[0003] Using the vehicle speed difference as the adjustment input in the PI adjustment, there are certain defects in the torque control that completely relies on the fixed PI parameter value adjustment. For example, relying too much on PI adjustment, the requested torque is completely determined by the PI adjustment torque, and only the vehicle speed difference is used as the input of the adjustment control. Since there is no intervention of dynamic control, only the algor...

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