Electric vehicle hill descent control system and control method thereof
A technology for electric vehicles and vehicle controllers, applied to electric vehicles, control drives, control devices, etc., can solve problems such as high cost, high maintenance cost, and easy failure, and achieve low cost, low failure rate, and low maintenance cost , the effect of simple operation
Inactive Publication Date: 2017-06-13
SHENZHEN ANDING NEW ENERGY TECH DEV CO LTD
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Problems solved by technology
However, the electric vehicle adopts the above-mentioned steep slope descent control method, which has high cost, is prone to failure, and has high maintenance cost.
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[0026] In order to make the object, technical solution and beneficial technical effects of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific implementations described in this specification are only for explaining the present invention, not for limiting the present invention.
[0027] Such as figure 1 As shown, a slope descent system 100 for an electric vehicle provided by the present invention includes a slope descent unit 10 , a vehicle controller 20 and a main drive motor 40 .
[0028] The steep slope descent unit 10 is connected with the vehicle controller 20 . Specifically, the steep slope descent unit 10 includes a steep slope descent switch 11 and a gradient sensor 12, the steep slope descent switch 11 and the gradient sensor 12 are respectively connected to the vehicle controller 20, and the steep slope descent ...
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The invention provides an electric vehicle hill descent control system and a control method thereof. The hill descent control system comprises a hill descent control unit, a whole vehicle controller and a main drive motor. The hill descent control unit comprises a hill descent control switch and a slope sensor which are connected with the whole vehicle controller. The hill descent control switch is used for switching the whole vehicle controller to be in a hill descent control mode. The slope sensor is used for detecting the slope value of the current road condition to determine whether the current road condition is a hill descent road condition or not. The main drive motor is connected with the whole vehicle controller which can control the magnitude and direction of the output torque of the main drive motor and is used for controlling the magnitude and direction of the output torque of the main drive motor to enable the vehicle speed to be kept at a set target speed when the slope sensor detects the hill descent road condition and the hill descent control switch is switched to the hill descent control mode. By adoption of the electric vehicle hill descent control system and the control method thereof, the hill descent control function can be achieved under the condition that an electric vehicle is not equipped with an electric control system, operation is easy, and the cost is low.
Description
[0001] 【Technical field】 [0002] The invention relates to the field of complete vehicle control of electric vehicles, in particular to a steep slope descent system and a control method thereof for electric vehicles. [0003] 【Background technique】 [0004] At present, electric vehicles adopt the steep slope descent control method of traditional fuel vehicles, that is, the entire vehicle is equipped with an electronically controlled braking system (such as an ABS system), and the vehicle enters a low-speed driving state through the joint action of the engine brake and the electronically controlled braking system. However, the electric vehicle adopts the above steep slope descent control method, which has high cost, is prone to failure, and has high maintenance cost. [0005] In view of this, it is really necessary to provide a new steep slope descent system and its control method for electric vehicles, so as to overcome the deficiencies in the prior art. [0006] 【Content of i...
Claims
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IPC IPC(8): B60L15/28
CPCB60L15/28B60L2240/423B60L2240/642B60L2260/44Y02T10/72
Inventor 孔银龙
Owner SHENZHEN ANDING NEW ENERGY TECH DEV CO LTD