Calculation method, device and storage medium of wheel lock-easy degree parameter

Abstract

The invention relates to the field of calculation of driving parameters, and discloses a calculation method, equipment and storage medium for parameters of the degree of easy locking of wheels. The method includes: during the braking process of the anti-lock braking system of the vehicle, acquiring the pressure stage of the target wheel cylinder corresponding to the target wheel in this pressure cycle; In the pressure stage, calculate the maximum slip ratio of the target wheel; if the maximum slip ratio is greater than the first threshold, calculate the wheel acceleration of the target wheel in the pressure holding stage, and determine this pressure cycle according to the wheel acceleration The parameters of the degree of easy locking of the wheel. This embodiment proposes a parameter characterizing the ease of wheel locking and a calculation method for the parameter.

Description

technical field [0001] The invention relates to the field of calculation of driving parameters, in particular to a calculation method, device and storage medium of a wheel lock-easy degree parameter. Background technique [0002] The function of Antilock Brake System (ABS) is to automatically control the braking force of the brakes when the car is braking, so that the wheels are not locked and are in a state of rolling and sliding, so as to ensure the contact between the wheels and the ground. Adhesion at maximum. [0003] When ABS controls the wheel cylinder pressure, the degree of difficulty of wheel locking is different when the road adhesion, tire pressure, vehicle load, etc. are different, which puts forward different requirements for the control logic of ABS. For example, switching the control logic applicable to asphalt roads to ice will have an unsatisfactory effect, because the wheels are more likely to lock up on ice; Not ideal because the rear wheels of the van ...

AI Technical Summary

Problems solved by technology

For example, switching the control logic suitable for asphalt roads to ice will have a bad effect, because the wheels are more likely to lock up on ice; Not ideal because the rear wheels of the van are more likely to lock up when empty than when fully loaded

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