Engineering vehicle battery heat management system and method

Abstract

The invention discloses an engineering vehicle battery heat management system and a control method. The engineering vehicle battery heat management system comprises a battery pack, the battery pack is provided with a water inlet and a water outlet, and the water inlet is connected with a water pump; the engineering vehicle battery heat management system further comprises an electronic three-way valve A, an electronic three-way valve B, a radiator, a plate exchanger and a heater; the first end of the electronic three-way valve A is connected with the water outlet, the second end of the electronic three-way valve A is connected with the first end of the electronic three-way valve B through the radiator, and the third end of the electronic three-way valve A is connected with the first end of the electronic three-way valve B through the plate exchanger; the second end of the electronic three-way valve B is connected with the water inlet through the heater, and the third end of the electronic three-way valve B is directly connected with the water inlet; the water inlet is connected with an inlet temperature sensor and a water pump; and the water outlet is connected with an outlet temperature sensor. The engineering vehicle battery heat management system has the following advantages that: 1, the battery heat dissipation mode can be automatically switched according to the environment temperature and battery temperature; 2, heat management of batteries in a full temperature range can be realized; and 3, the heat management system is convenient and flexible to adjust, high in applicability and high in reliability.

Description

technical field [0001] The invention belongs to the technical field of new energy, and in particular relates to a heat management system and method for engineering vehicle batteries. Background technique [0002] With the development of motors, batteries and control technologies, more and more large-scale mining equipment is driven by electric power, including electric excavators, electric loaders and pure electric mine dump trucks. In particular, pure electric dump trucks have an absolute advantage in large-scale mine earthwork transportation. As one of the important components of a pure electric dump truck, the performance of the battery system directly affects the mileage of the vehicle. The working environment of the mine car is harsh, and the battery performance of the pure electric mine car is limited to varying degrees under low or high temperature environments. Therefore, a reliable battery heat management system is particularly important. [0003] The traditional ...

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Problems solved by technology

[0004] Aiming at the problems of large differences in operating environment temperature and complex temperature changes in the working process of pure electric engineering vehicles, the present invention provides a battery heat management system and method for engineering vehicles, which can Dealing with battery heat management issues under various complex working conditions

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