Synergistic device and control method for pure electric vehicle compound braking and active energy-feeding suspension

Abstract

The invention discloses a composite braking and active energy-feedback suspension collaboration device of a battery electric vehicle and a control method and belongs to the field of energy recycle of battery electric vehicles. The composite braking and active energy-feedback suspension collaboration device is mainly composed of three parts of various sensors used for measuring vehicle and road information, a decision controller controlling tasks and permission of subsystems in a layered collaboration mode and actuators of an active suspension linear motor and a regenerative braking motor, and the sensors and the actuators are connected together through the decision controller. The decision controller analyzes and processes sensor signals to judge the braking working condition of a vehicle and posture information of a vehicle body, accordingly sends out a control instruction to reasonably recycle braking energy and suspension vibration energy. The decision controller builds a fuzzy quality function deployment theory to judge the working condition and conducts distributed collaborative control on the two subsystems by means of priority and the negotiation mechanism according to the determined working condition and information, and the purpose of real-time control is achieved through a measure of combining off-line optimizing and on-line optimizing.

Description

technical field [0001] The invention relates to a synergistic device and control method for braking energy and suspension vibration energy of a pure electric vehicle. Background technique [0002] At present, the energy issue has become one of the important issues facing the world. Traditional automobiles can no longer meet the needs of social development. Pure electric vehicles have become a research hotspot, and the short driving range is the main bottleneck restricting the development of pure electric vehicles. Scholars at home and abroad have carried out extensive research on batteries and motors on this issue. With the continuous development of automobile technology, especially the emergence of new chassis technology, it is possible to efficiently recover various energies. For example, the electric motor is used for energy recovery for vehicle braking, and the vehicle can also recover and utilize the vibration energy generated by the suspension through the energy-feedi...

AI Technical Summary

Problems solved by technology

Traditional automobiles can no longer meet the needs of social development. Pure electric vehicles have become a research hotspot, and the short driving range is the main bottleneck restricting the development of pure electric vehicles. Scholars at home and abroad have carried out extensive research on batteries and motors on this issue.

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