Electric vehicle drive motor control method
A drive motor control and drive motor technology, applied in the direction of electric vehicles, control drives, electric braking systems, etc., can solve the problems of single control method and ineffective recycling of braking energy, so as to increase the driving range and ensure dynamic effect
Active Publication Date: 2016-11-30
SHANDONG UNIV OF TECH
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Problems solved by technology
In the control method of the electric vehicle motor, there is no control of the braking energy recovery and power generation state, the control method is single, the braking energy of the electric vehicle has not been effectively recovered, and its performance needs to be further improved
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[0010] The present invention will be further described below in conjunction with accompanying drawing:
[0011] The electric vehicle driving motor control method, the main control circuit 1 coordinates and controls the driving circuit 2 and the driving power generation conversion circuit 9 to make the driving motor 4 work, and is characterized in that the working state of the driving motor 4 is divided into a driving state and a braking energy recovery power generation state ;
[0012] In the driving state, the main control circuit 1 receives the driving signal from the driver, turns off the driving power generation conversion circuit 9, protects the voltage stabilizing circuit 6, and confirms the voltage of the storage battery 5 required to drive the electric vehicle. If the voltage of the storage battery 5 is low At the set value, the main control circuit 1 stops sending pulse driving signals to the drive circuit 2, and at the same time sends a warning signal to the driver, ...
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The invention provides a control method of an electric car driving motor, and belongs to the technical field of the control of an electric car. The motor is controlled to work by a drive circuit and a drive power generation conversion circuit under the coordinative control of a main control circuit, the work state of the motor is classified into a drive state and a brake energy recycling and power generation state, the drive control and the brake energy recycling and power generation control are integrated by adopting the electric car motor control method, so that simplicity, stability, safety and reliability in control can be realized, not only can the drive efficiency of the motor be optimized, but also the recycling and power generation of the brake energy when the electric car brakes can be effectively realized, and a purpose of reducing energy consumption and improving the driving range of the electric car can be realized.
Description
technical field [0001] The invention provides a method for controlling a driving motor of an electric vehicle, which belongs to the technical field of electric vehicle control. Background technique [0002] Electric vehicles have the advantages of high efficiency, low noise, zero emissions, etc., and have incomparable advantages in environmental protection and energy saving. Their application and popularization have become an inevitable trend for the sustainable development of the automotive industry, but the lack of driving range is still a constraint for pure electric vehicles. The bottleneck problem of automobile industrialization is that a large amount of kinetic energy of electric vehicles is lost through friction and heat during the braking process, and energy is wasted seriously. For example, the invention patent of the authorized announcement on July 11, 2012: a motor controller and its control method for electric vehicles, authorized announcement number: CN101565003...
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IPC IPC(8): B60L15/20B60L7/10
CPCY02T10/72
Inventor 张学义马清芝杜钦君史立伟刘从臻
Owner SHANDONG UNIV OF TECH