Dual-channel redundant safety high-voltage equipment for light passenger cars and its control system and control method

Abstract

The invention provides double-line redundancy safety high-voltage equipment of a light bus and a control system and method thereof. The equipment comprises a power battery set, a power management system unit, a motor controller, high-voltage accessories, a whole-bus controller and a driving motor. The power management system unit, the motor controller and the high-voltage accessories are connected between a positive electrode and a negative electrode of the power battery set through high-voltage cables. The whole-bus controller is connected to the power management system unit, and the driving motor is connected to the motor controller. The power battery set comprises at least two battery packs connected in parallel, and at least one battery pack provides power in operation of a double-line redundancy safety high-voltage system of the light bus. Through the battery packs connected in parallel, power is supplied to the whole light bus; when one battery pack fails, other battery packs can still guarantee that the light bus operates at preset rated power, sufficient time is reserved for the light bus on which the electric failure happens so that the light bus can reach a safe position, and then safety of a driver and passengers can be guaranteed.

Description

technical field [0001] The invention relates to a dual-channel redundant safety high-voltage equipment for a light passenger car, a control system and a control method thereof. Background technique [0002] In recent years, with the rapid development of the economy, petroleum energy has become increasingly depleted, and the pressure of environmental protection has become heavier. The design and manufacturing technology of automobiles is improving day by day. New energy vehicles, led by light buses, have become the focus of the research and development of the automobile industry. [0003] Light-duty buses are powered by electricity and driven by motors. Due to the variety of sources of electricity, many renewable clean energy sources can be converted into electric energy, so light-duty buses can reduce their dependence on non-renewable energy such as petroleum and reduce Discarded emissions; the key part of a light bus is the battery that provides power for it. At present, th...

AI Technical Summary

Problems solved by technology

[0004] However, in the prior art, light passenger vehicles usually use a single battery pack to directly supply power to the light passenger vehicle. At the same time, the battery pack is not equipped with a management system. When the battery pack fails, the light passenger vehicle stops running immediately. In this way, The light passenger car cannot guarantee the safety of the driver and passengers, and there are serious safety hazards

Images