Electric vehicle caliper dragging energy consumption testing method and device
A technology of electric vehicles and testing methods, which is applied in the direction of measuring devices, vehicle testing, machine/structural component testing, etc., can solve problems such as unsatisfactory energy consumption accuracy, and achieve the effect of improving performance testing and having a targeted effect
Pending Publication Date: 2021-01-05
GUANGZHOU XIAOPENG MOTORS TECH CO LTD
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Problems solved by technology
[0005] For electric vehicles running at a constant speed, the current accuracy of testing the energy consumption consumed by the dragging resistance of electric vehicle calipers is not ideal
Method used
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Embodiment approach
[0039]As an embodiment, the method can be used in an electric vehicle with both front and rear brakes being disc brakes. The following is an example of an electric vehicle where both front and rear brakes are disc brakes.
[0040]Fromfigure 1 It can be seen that the method for testing the drag energy consumption of the electric vehicle caliper may include step S110 to step S130.
[0041]Step S110: Load the preset resistance and preset speed to the electric vehicle without removing the friction plate, and test the driving range of the electric vehicle without removing the friction plate and consume the preset power.
[0042]When the electric vehicle has not removed the friction plate, the electric vehicle is loaded with resistance through the resistance loading module in the controller, and the resistance is loaded to the preset resistance; at the same time, the speed loading module in the controller is used to load the electric vehicle Speed loading is performed in the on state, and the lo...
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The embodiment of the invention provides an electric vehicle caliper dragging energy consumption testing method and device. The method comprises the steps of loading a preset resistance and a preset speed per hour to an electric vehicle with an undisassembled friction plate, and testing the travelled distance of a preset electric quantity consumed by the electric vehicle with the undisassembled friction plate, loading a preset resistance and a preset speed per hour to the electric vehicle with the friction plate removed, and testing the travelled distance of the electric vehicle with the friction plate removed consuming a preset electric quantity, and solving the mileage difference when the electric vehicle with the friction plate removed and the electric vehicle without the friction plateremoved consume unit electric quantity. The testing device comprises a rotating hub test bench, a controller and a display. The controller is used for respectively obtaining the travelled distance difference of the to-be-tested electric vehicle in the two states of not removing the friction plate and removing the friction plate when the unit electric quantity is consumed under the preset resistance and the preset speed per hour; the display is electrically connected with the controller and used for displaying results. The influence of the dragging resistance of the calipers on the endurance of the whole vehicle can be accurately tested, and the performance test effect is effectively improved.
Description
Technical field[0001]The application belongs to the technical field of energy consumption testing of electric vehicles, and more specifically, relates to a method and device for testing energy consumption of electric vehicle calipers dragging.Background technique[0002]The energy consumption of electric vehicles includes the consumption of electrical appliances and the consumption of work to overcome various resistances.[0003]Among them, resistance includes wind resistance, rolling resistance and internal resistance. Internal resistance refers to the resistance that hinders the rotation of the transmission, transmission shaft, and wheels, and the resistance is mainly friction.[0004]The drag resistance of the caliper in an electric vehicle is a part of the internal resistance, which is the friction resistance that hinders the rotation of the wheel caused by the friction between the friction plate and the brake disc.[0005]When the electric vehicle is driving at a constant speed, the ac...
Claims
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IPC IPC(8): G01M17/007G01L5/28G01C22/00G01R31/387
CPCG01M17/007G01L5/28G01C22/00G01R31/387
Inventor 战勇
Owner GUANGZHOU XIAOPENG MOTORS TECH CO LTD