Hill starting sliding prevention control method and device and electronic equipment

Abstract

The invention provides a hill starting sliding prevention control method and device and electronic equipment and relates to the technical field of automobile starting control. The hill starting sliding prevention control method comprises the steps of calculating a gradient desired torque and a driver desired torque which overcome gradient resistance when detecting that a vehicle carries out hill starting and an automatic hold AVH function of an electronic stability program ESP is started; transmitting a torque output instruction to a power system according to the gradient desired torque and the driver desired torque so that the power system carries out braking; calculating a current actual torque of the power system; and transmitting a control instruction to the ESP to control the vehicleto start according to the current actual torque, the gradient desired torque and the driver desired torque. According to the hill starting sliding prevention control method, the power system and the ESP are controlled in a coordinated manner to avoid a backward sliding phenomenon and realize stable starting of a hybrid vehicle on a ramp; the control delay and uncertainty are reduced; and the control performance is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle start control, in particular to a method, device and electronic equipment for controlling a vehicle to prevent rolling when starting on a hill. Background technique [0002] When a hybrid vehicle stops on a slope with a certain angle, since its own gravity has a backward component force parallel to the slope at the slope angle, the vehicle will move along the slope without other driving torque or braking torque. Sliding down is the so-called sliding slope phenomenon. When the slope rises normally, the braking effect will be released first, and then the driving output of the power system will be started. In the initial stage, when the driving torque is relatively small or zero (normally, the driver releases the The two actions of lowering the accelerator pedal will not be carried out at the same time), the power output is not enough to offset the resistance of the ramp, and the car body will also ...

AI Technical Summary

Problems solved by technology

[0004] The logical setting of the above-mentioned method is simple, and it cannot avoid the phenomenon of the vehicle body slipping backward at the beginning of the start; and the change of the vehicle speed is the result of the acceleration, and the acceleration is related to the output torque, so there will be a certain delay and uncertainty in the direct control of the vehicle speed sex

Images