Cooling system for testing longevity of hybrid vehicle controller

Abstract

The invention aims at providing a cooling system for the lift test of a whole vehicle controller of a hybrid engine vehicle, which comprises a control unit, a flow metering valve, a water pump, a flow divider, a condenser, a water tank and a cooling stage provided with temperature sensors, wherein, the control unit receives temperature signals transmitted by the temperature sensors of the cooling stage and transmits control signals to the water pump, the flow metering valve and the flow divider to control the work of the water pump, the flow metering valve and the flow divider, cooling water pumped from the water tank by the water pump is divided into a plurality of flow metering valve and the cooling stage communicated with the flow metering valves, cooling water passing through the cooling stage is combined to the flow divider, and then the water passes through one or more condensers to come back to the water tank. The cooling system of the invention adopts a water circulation cooling method, the control unit has reliable temperature control methods for each cooling stage, and all cooling parts such as the whole vehicle controller, motors, and the like can be ensured to work in temperature ranges required for respective tests.

Description

technical field [0001] The invention relates to a test system of a hybrid electric vehicle, in particular to a cooling system used in a life test system of a controller of a hybrid electric vehicle. Background technique [0002] With the energy crisis and the strengthening of people's awareness of environmental protection, energy-saving, environmentally friendly, and efficient new energy vehicles have become a new trend in the development of the automotive industry. Among them, hybrid electric vehicles (Hybrid Electric Vehicle, abbreviated as HEV) have the advantages of low emissions of electric vehicles Compared with the high specific energy advantages of internal combustion engine vehicles, it has attracted more and more attention. [0003] The hybrid vehicle described in this article refers to a moderately hybrid (ISG, integrated starter generator) vehicle, in addition to the configuration of a conventional car, it also includes a hybrid vehicle controller installed betwe...

AI Technical Summary

Problems solved by technology

In this way, the operating temperature of the hybrid vehicle controller and the hybrid motor are unstable. Once their actual operating temperature exceeds the normal temperature range, the controller and the motor may be burned, and the entire hybrid vehicle may be damaged. The damage of the controller life test system and the failure of the test, so in the life test of the hybrid vehicle controller must have a set of cooling system to ensure that the controller, motor and other key components work within the normal temperature range

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