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Suppression method of temperature effect in automotive hybrid power drive system

A hybrid power supply and drive system technology, applied in the direction of motor control, control system, electrical components, etc., can solve the problems of low system efficiency and high system power loss, and achieve the effect of reducing system loss, improving system efficiency, and realizing maximum utilization

Active Publication Date: 2020-05-26
JIANGSU UNIV OF TECH
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Problems solved by technology

[0004] Aiming at the deficiencies of the above-mentioned prior art, the present invention provides a method for suppressing the temperature effect of the vehicle-mounted hybrid power drive system, which effectively solves the problem of excessive system power loss and low system efficiency caused by the temperature suppression method of the existing hybrid power drive system. technical problem

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  • Suppression method of temperature effect in automotive hybrid power drive system
  • Suppression method of temperature effect in automotive hybrid power drive system
  • Suppression method of temperature effect in automotive hybrid power drive system

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Embodiment Construction

[0016] In order to make the content of the present invention clearer and easier to understand, the content of the present invention will be further described below in conjunction with the accompanying drawings. Of course, the present invention is not limited to this specific embodiment, and general replacements known to those skilled in the art are also covered within the protection scope of the present invention.

[0017] Based on the technical problems of high system power loss and low system efficiency caused by the temperature suppression method in the existing hybrid power drive system, the present invention provides a method for suppressing the temperature effect of the vehicle-mounted hybrid power drive system. The hybrid power drive system Including a hybrid power supply, a power converter and a drive motor, the hybrid power supply includes a storage battery for providing energy and a supercapacitor for providing power, the power converter includes a DC / DC converter and...

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Abstract

The invention discloses a method for suppressing the temperature effect of a vehicle-mounted hybrid power drive system. The power loss of the supercapacitor, power converter and drive motor under the action of temperature effect; based on the multiplication and division optimization method, according to the power loss of the battery, supercapacitor, power converter and drive motor, the objective function and corresponding According to the constraint conditions, the objective function is solved to obtain the minimum value of battery power loss, supercapacitor power loss, power converter power loss and drive motor power loss respectively, so as to realize the suppression of the temperature effect of the hybrid power drive system, from the source Reduce system loss, improve system efficiency, and maximize energy utilization.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a method for suppressing the temperature effect of a vehicle-mounted hybrid power drive system. Background technique [0002] At present, the electric vehicle battery-supercapacitor hybrid power drive system has received extensive attention from scholars at home and abroad in the field of new energy vehicles. In this hybrid power supply, the battery takes advantage of its high energy density, and the supercapacitor takes advantage of its high power density. , and then meet the dual requirements of high energy density and high power density of electric vehicle loads. [0003] During the operation of electric vehicles, the temperature of the hybrid power drive system will increase accordingly, resulting in increased system power loss and reduced system operation efficiency. Therefore, how to suppress the temperature effect of the hybrid power drive system is currently facing scho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P29/68
CPCH02P29/68
Inventor 王琪韩晓新诸一琦罗印升
Owner JIANGSU UNIV OF TECH
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