Dynamic stability control system for multi-axis distributed electromechanical drive vehicle

Abstract

The invention belongs to the field of dynamic stability control systems of vehicles, and particularly discloses a dynamic stability control system for a multiaxial distributed electromechanical driving vehicle aiming at an 8*8 multiaxial distributed electromechanical driving vehicle. The system comprises a hardware module and a software module, wherein the hardware module is mainly composed of four wheel edge driving motors, four motor controller, a yaw angular velocity sensor, a longitudinal acceleration sensor, a lateral acceleration sensor and a whole vehicle controller, and the software module of the system comprises a mass center slip angle calculation module, a vehicle instability judgment module and a yawing moment auxiliary module. The dynamic stability requirements of the vehicle at different velocities can be met, and a gap of the dynamic stability control system for 8*8 multiaxial distributed driving vehicles is filled up.

Description

technical field [0001] The invention belongs to the field of vehicle dynamic stability control systems, in particular to a dynamic stability control system for multi-axis distributed electromechanical drive vehicles. Background technique [0002] Multi-axle vehicles have outstanding advantages such as reasonable load distribution, strong power, and good passability, and are widely used in military wheeled vehicles and civilian heavy-duty wheeled vehicles. However, taking the traditional all-wheel drive 8×8 vehicle as an example, it needs at least 4 inter-wheel differentials and 3 inter-axle differentials to realize all-wheel drive, which has complex structures and inflexible inter-axle and inter-wheel drive forces. Disadvantages such as distribution, so there has been a distributed electromechanical drive vehicle scheme such as the publication number CN103587403A. The wheels of the front two axles are driven by the engine, and the wheels of the rear two axles are driven by t...

AI Technical Summary

Problems solved by technology

However, taking the traditional all-wheel drive 8×8 vehicle as an example, it needs at least 4 inter-wheel differentials and 3 inter-axle differentials to realize all-wheel drive, which has complex structures and inflexible inter-axle and inter-wheel drive forces. Disadvantages such as distribution, so there has been a distributed electromechanical drive vehicle scheme such as the publication number CN103587403A. The wheels of the front two axles are driven by the engine, and the wheels of the rear two axles are driven by the wheel motors. The power can be used between the wheels of the rear two axles. 0-100% flexible allocation, which greatly improves the power and off-road performance of the vehicle

[0003] However, the existing distributed drive vehicle dynamics stability control systems are all developed based on 4-wheel civilian vehicles, and there are no reports on multi-axle vehicles such as 8×8.

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