Braking control method and system of switching value braking pedal, and vehicle

Abstract

The invention discloses a braking control method and system of a switching value braking pedal and further discloses a vehicle comprising the braking control system. The method comprises the steps that when a driver operates the braking pedal, the time duration of stamping on the braking pedal by the driver is obtained, and according to the time duration, the depth delta of the braking pedal is determined; the maximum permitted braking power of all parts of the current vehicle is obtained, and the minimum value in the maximum permitted braking power of all the parts is determined to the real-time maximum permitted braking power P<max>; and according to the depth delta of the braking pedal, the real-time maximum permitted braking power P<max> and the actual motor rotating speed, braking torque T<target> is obtained, and according to the depth delta of the braking pedal and the braking torque T<target>, the vehicle is controlled to be braked. According to the braking control method and system, the pedal braking behavior of a driver can be simulated, the braking intention of the driver is reflected, the reasonable braking torque distribution and vehicle safety of the vehicle are ensured, and the economical efficiency of the vehicle is ensured.

Description

technical field [0001] The invention relates to the technical field of vehicle control, and more specifically, to a braking control method of a switching value braking pedal. In addition, the present invention also relates to a brake control system of a switching value brake pedal for realizing the above method and a vehicle with the system. Background technique [0002] In recent years, electric vehicles have the advantages of easy handling, no emission, and good economy. Electric vehicles have attracted the attention of people from all walks of life. With the rapid development of electric vehicle technology, the relevant technologies of electric vehicles have continuously made breakthroughs and developments, among which safety, better handling and economy are one of the focuses of widespread attention. [0003] Some small vehicles in the design and production of existing pure electric vehicles use switch brake pedals. The signal input from the brake pedal to the vehicle c...

AI Technical Summary

Problems solved by technology

[0003] Some small vehicles in the design and production of existing pure electric vehicles use switch brake pedals. The signal input from the brake pedal to the vehicle controller is a digital signal, and the pedal opening cannot be obtained, resulting in the inability of the vehicle control to directly obtain the driver's intention. , which brings difficulties to pedal analysis and electric brake processing. If it is not properly handled, it will affect driving safety and reduce braking energy recovery, reducing vehicle mileage and economy

Images