Electric-control pneumatic battery changing system and method for electric truck and load-carrying electric vehicle

Abstract

The invention provides an electric-control pneumatic battery changing system and method for an electric truck and a load-carrying electric vehicle. A power battery pack and a battery manager are arranged in a battery changing frame, a vehicle-mounted battery changing seat is used for bearing the battery changing frame, and the high-voltage and low-voltage electrical socket is used for connecting the battery changing frame with high-low voltage electric of a vehicle and a CAN communication network; and a vehicle control unit is used for receiving a driver control signal, a parking signal, a switching signal, a battery manager signal, a power battery main contactor status signal and the like, identifying the intention of a driver, and realizing control and monitoring of a vehicle battery changing system through a control strategy and logic judgment. The quick battery changing control of the electric truck is realized, the vehicle parking power supplementation time is favorably reduced, the vehicle battery changing efficiency is improved, the vehicle safety detection, and the reliability and the safety detection of the battery changing type electric truck in the using process before and after the battery changing operation are realized, so that the vehicle running safety is guaranteed.

Description

technical field [0001] The invention relates to an electric truck, in particular to an electric truck electric control pneumatic power exchange system, a method and a heavy-duty electric vehicle. Background technique [0002] With the intensification of carbon emissions, the deterioration of the atmospheric environment, the non-renewable fossil resources, and the arduous task of energy conservation and emission reduction in society, electrification has become the mainstream route for the development of automobile technology. As one of the "big three electric" technologies of electric vehicles, the energy storage system determines the maturity of the electric vehicle industry. At present, limited by the technical level of the energy density of energy storage batteries, in order to meet the requirements of the driving range of vehicles, electric vehicles generally arrange power batteries with large volume and weight, especially heavy-duty electric vehicles with heavy load and ...

AI Technical Summary

Problems solved by technology

[0003] What the present invention aims to solve is the excessive volume and weight of the power battery carried by the electric truck based on the existing power battery technology level, the high height of the vehicle's center of mass resulting in poor driving stability, the long time for power replenishment after parking, and the reliability of battery replacement operations. Poor safety, low battery replacement efficiency, low vehicle inspection efficiency before and after battery replacement, and insufficient space available for bodywork

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