A kind of reversing control method, device and electric vehicle
A technology of electric vehicles and control methods, which is applied in the direction of electric vehicles, control drive, power management, etc., and can solve problems such as uneven torque output
Active Publication Date: 2020-01-10
BEIJING ELECTRIC VEHICLE
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[0004] The object of the present invention is to provide a reversing control method, device and electric vehicle. By accurately judging the entering conditions of the reversing working condition, it provides a solution to the problem of uneven torque output during the reversing process of the existing pure electric vehicle. corresponding process control
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[0091] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
[0092] Such as figure 1 As shown in FIG. 1 , it is a flow chart of the reversing control method of the embodiment of the present invention. Before specifying the implementation process of the method, it should first be explained that the reversing control method provided by the present invention is suitable for figure 2 The control system architecture shown for pure electric vehicles.
[0093] here, as figure 2 As shown, the control system architecture includes: accelerator pedal system, brake pedal system, gear system, vehicle control unit (Vehicle Control Unit, referred to as VCU), battery management system (Battery Management System, referred to as BMS), motor controller ( Moter Control Unit, referred to as MCU), drive motor, single-stage reducer...
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The invention provides a reversing control method, device and an electric car. The method comprises following steps: when an input instruction of reserving is received, determining whether the currentrunning state of electric car meets the conditions of entering the state of slowing down for reverse gear; when the current running state of electric car meets the conditions of entering the state ofslowing down for reverse gear, controlling the electric car to enter the entering the state of slowing down for reverse gear; otherwise, determining whether the current running state meets the conditions of entering the state of reverse gear; when the current running state meets the conditions of entering the state of reverse gear, controlling the electric car to enter the state of reverse gear.In addition to reliably and effectively judging the driving intention of a driver, the invention is also helpful to solve the problem of uneven torque output in the course of reversing driving, ensuring the smooth running of the vehicle and improving the driving feeling of the driver and the passengers.
Description
technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a reversing control method and device and the electric vehicle. Background technique [0002] In the face of increasingly severe energy and environmental problems, energy-saving and new energy vehicles are becoming the hotspots of current research. As a type of energy-saving and new energy vehicles, pure electric vehicles have many advantages such as no exhaust emissions, high energy efficiency, low noise, and recyclable energy during driving. Therefore, vigorously developing pure electric vehicles is beneficial to energy security and environmental protection has great significance. [0003] Pure electric vehicles drive the wheels through motors to drive the vehicle. As the core functions of pure electric vehicles, motor drive and control have a great impact on the performance of the vehicle. With the development of permanent magnet materials, power electronics techno...
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IPC IPC(8): B60L15/20
CPCY02T10/72
Inventor 李玮代康伟梁海强刘超范江楠
Owner BEIJING ELECTRIC VEHICLE