Electric vehicle temperature control method, device, controller and electric vehicle

Abstract

The invention provides an electric vehicle temperature control method, a device, a controller and an electric vehicle; the method comprises the following steps: respectively obtaining the present temperature value of a driving motor and a generator, and respectively obtaining the present temperature value of a switch tube on a driving circuit of the driving motor and a switch tube on a driving circuit of the generator; determining the motor temperature level of the motor system according to the present temperature values of the driving motor and the generator; determining the switch tube temperature level of the motor driving system according to the present temperature values of the switch tube on the driving circuit of the driving motor and the switch tube on the driving circuit of the generator; determining regulation parameters according to the motor temperature level and the switch tube temperature level, and outputting a control signal to a temperature regulation and control device of the electric vehicle. The method and device can improve the cooling ability of a cooling system, thus preventing over-temperature conditions of all vehicle parts, and reducing part losses.

Description

technical field [0001] The invention relates to the field of automobile thermal control, in particular to a temperature control method, device, controller and electric automobile for an electric automobile. Background technique [0002] With the development of social economy, automobiles are becoming more and more popular, and they are already entering thousands of households, becoming an indispensable means of transportation for daily travel. [0003] During the driving process of the car, since the components are in the working state for a long time, the temperature will continue to rise with the increase of the driving time. The temperature rise of the components needs to be adjusted by assembling a cooling system in the car. The existing cooling system, Usually, the cooling capacity of temperature control devices such as radiators, cooling water pumps, and cooling fans is used to control the cooling of the engine and the vehicle system. The existing temperature control d...

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Problems solved by technology

[0004] Embodiments of the present invention provide a temperature control method, device, controller, and electric vehicle for an electric vehicle to solve the problem of insufficient cooling capacity and low cooling efficiency in the compact installation environment of the existing temperature control method, which causes the various components of the vehicle to The occurrence of overheating will increase the loss of components and damage the performance and service life of the vehicle

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