Vehicle chassis integrated control system and method

Abstract

The invention relates to a vehicle control field, in particular to a vehicle chassis integrated control system and a control method. The system detects the wheel speed signal, the torque signal, the engine rotation speed signal, the vertical acceleration speed signal and the brake pedal signal of the vehicle by a sensor and inputs the signals into a primal coordination CPU; the primal coordination CPU transmits the signals to an ABS CPU, an EPS CPU and an ASS CPU respectively as well as sends out a coordination command according to the analysis on the signals simultaneously; while the ABS CPU, the EPS CPU and an ASS CPU control a corresponding drive module according to the sensor signal and the coordination command received respectively. The problem of mutual interference among the three systems of EPS, ASS and ABS in the existing vehicle, realizes the coordination control on the three systems and fully improves the running smoothness and safety as well as the operation stability of the vehicle.

Description

technical field [0001] The invention relates to the field of automobile control. Background technique [0002] At present, the well-known electronic control subsystems of automobile chassis are generally composed of sensors, electronic control units (ECUs) and actuators. The subsystems are controlled independently during work, that is, one subsystem has one ECU. First, the main control parameter signal of the subsystem is detected by the sensor, and then transmitted to the ECU of the system, and after being processed by the ECU, the command is output to the actuator to realize the control of the system. However, the automobile chassis contains a lot of electronic control subsystems, and there are interrelationships and influences between them, as well as primary and secondary relationships. Some subsystems may have several common control parameters, and the improvement of a certain electronic control subsystem alone , it is bound to have a direct or indirect impact on the f...

AI Technical Summary

Problems solved by technology

However, the automobile chassis contains a lot of electronic control subsystems, and there are interrelationships and influences between them, as well as primary and secondary relationships. Some subsystems may have several common control parameters, and the improvement of a certain electronic control subsystem alone , is bound to have a direct or indirect impact on the functions of other subsystems, which in turn will also affect the control effect of this subsystem

Currently, the Electric Power Steering (EPS), Active Suspension (ASS) and Anti-lock Brake System (ABS) installed on the chassis of the car are all made separately as a whole, and each system is independent under the instructions of its own control unit. Work, without considering the interaction and coupling among the three, cannot solve the interaction between the three separate systems in the prior art, and cannot achieve the best control state

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