A method for controlling an electric vehicle drive system
A driving system and control method technology, applied in the field of electric vehicles, can solve problems such as inaccurate over-limit control, and achieve the effects of accurate current and voltage limits and high reliability
Active Publication Date: 2019-10-15
常州寻心电子科技有限公司
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Problems solved by technology
[0007] The technical problem to be solved by the present invention is: in order to solve the problem of inaccurate over-limit control in the prior art, the present invention provides a control method for the drive system of an electric vehicle to solve the above-mentioned problem
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[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
[0044] Such as figure 1 As shown, the drive system overrun control method includes drive system overrun control, temperature overrun control, and bus overrun control.
[0045] Among them, the over-limit control of the drive system includes the overcurrent of the power module and the over-temperature of the power module; the over-limit control of the bus includes the over-voltage of the bus bar of the battery pack, the over-voltage of the bus, and the over-current of the bus; the over-temperature control includes the over-temperature of the controller. And the motor temperature is too high.
[0046] The over-limit control of the drive system is ...
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The invention relates to an electric vehicle driving system control method. The electric vehicle driving system control method is used for realizing ultra-limit control of a driving system. The ultra-limit control of the driving system is that a main control module in a controller collects various data, wherein the various data comprises current data, voltage data, temperature data and so on; andwhen any data exceeds a specified range, the main control module controls a motor by using a power module, including reducing the operation rotation speed of the motor or stopping the operation of themotor, so that the ultra-limit data recover to a normal range. According to the electric vehicle driving system control method, the control method can work together with a high efficiency permanent magnet motor or switched reluctance motor driving system and can use a magnetoelectric encoder with higher cost performance as a position sensor so as to form a high-performance electric vehicle driving system so that targets of high reliability and high performance of the electric vehicle are really realized. Regarding the reasons, the electric vehicle driving system control method can be widely applied to the field of electric vehicles.
Description
Technical field [0001] The invention relates to the field of electric vehicles, in particular to a control method of an electric vehicle drive system. Background technique [0002] Electric vehicles have incomparable advantages over traditional vehicles in terms of energy saving, emission reduction, climate warming, and security of oil supply. Increasingly improving battery equipment, charging technology and charging equipment also promote the continuous popularization of electric vehicles. The electric vehicle drive system, as the core part of the electric vehicle power system, is mainly composed of motors, sensors, controllers and battery packs. Among them, the battery pack provides input power to the controller, the controller drives the motor to run, the sensor is installed on the motor and the controller, and the detected information is provided to the main control module on the controller, thereby forming a closed-loop drive system. [0003] However, the commonly used elect...
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IPC IPC(8): B60L15/28
CPCB60L15/28Y02T10/72
Inventor 石晶合蔡一
Owner 常州寻心电子科技有限公司