Cooling system of pure electric vehicle

Abstract

The invention discloses a cooling system of a pure electric vehicle. The system comprises a driving motor, a whole vehicle CAN, a DC / DC controller, a motor controller, an ATS controller, an ATS fan forced start switch, a cooling fan and a connecting wire. The DC / DC controller is connected with the driving motor, the motor controller and the ATS controller through the whole vehicle CAN. The cooling fan is connected with the ATS controller through the connecting wire; one end of the ATS fan forced start switch is connected with the ATS controller through the connecting wire, and the other end of the ATS fan forced start switch is connected with the cooling fan through the connecting wire; and the ATS controller is used for controlling operation of the cooling fan. The cooling system is simple in structure; and the starting conditions of the cooling fan are controlled, so that rapid cooling and heat dissipation of the electric motor coach are ensured, and the cooling effect is good; the cooling system is convenient and reliable, and accurate temperature control is carried out electrically, so that the energy-saving effect of the system is improved.

Description

technical field [0001] The invention belongs to the technical field of design and manufacture of pure electric commercial vehicles, and in particular relates to a pure electric vehicle cooling system. Background technique [0002] When the electric bus is running, the motor, all-in-one controller and other devices will dissipate the huge heat generated by the fan of the liquid cooling system in time, so as to avoid continuous heating and affect the performance and safety of the whole vehicle. Previously, the liquid cooling system was complex, and the starting conditions of the liquid cooling fan were mostly uncontrolled full-speed start or the water temperature reached a certain level before starting to run. The noise was large and the water temperature could not be controlled in real time according to the working conditions so that the motor and controller were at the most suitable temperature. On the other hand, the power consumption of the whole vehicle will increase, the...

AI Technical Summary

Problems solved by technology

Previously, the liquid cooling system was complex, and the starting conditions of the liquid cooling fan were mostly uncontrolled full-speed start or the water temperature reached a certain level before starting to run. The noise was large and the water temperature could not be controlled in real time according to the working conditions so that the motor and controller were at the most suitable temperature. On the other hand, the power consumption of the whole vehicle will increase, the mileage will decrease, and the comfort of the whole vehicle will be affected.

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