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Brake control method and device and electric vehicle

An electric vehicle and brake control technology, applied in electric vehicles, control devices, control drives, etc., can solve problems such as vehicle torque control, and achieve the effect of satisfying driving intention, ensuring vehicle safety, and satisfying vehicle safety.

Pending Publication Date: 2021-09-28
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiment of the present invention is to provide a brake control method, device and electric vehicle, so as to solve the problem of vehicle torque control in the prior art when the accelerator pedal and the brake pedal are simultaneously depressed

Method used

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  • Brake control method and device and electric vehicle
  • Brake control method and device and electric vehicle
  • Brake control method and device and electric vehicle

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Embodiment Construction

[0046] In order to make the technical problems, technical solutions and advantages to solve the present invention more clearly, and will be described in detail below with reference to the accompanying drawings and specific examples.

[0047] The present invention provides a problem of braking control method, apparatus, and electric vehicle for the existing throttle pedal and brake pedal simultaneously in the prior art.

[0048] like figure 1 As shown, an embodiment of the present invention provides a method of braking control, applied to an electric vehicle, including:

[0049] In step S11, when the throttle pedal and the brake pedal are simultaneously depressed, the throttle requirements torque and brake recovery torque are obtained by the electric vehicle;

[0050] In step S12, when the throttle demand torque is smaller than the preset value, control the electric vehicle into the preset energy recovery mode, and determines the output torque of the electric vehicle according to t...

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Abstract

The invention provides a brake control method and device and an electric vehicle, and relates to the technical field of electric vehicles. The brake control method comprises the steps that when it is monitored that an accelerator pedal and a brake pedal are stepped down at the same time, the accelerator demand torque and the brake recovery torque of the electric automobile are obtained; when the accelerator demand torque is smaller than a preset value, the electric vehicle is controlled to enter a preset energy recovery mode, and the output torque of the electric vehicle is determined according to the accelerator demand torque and the brake recovery torque; and when the accelerator demand torque is larger than or equal to a preset value, the electric vehicle is controlled to enter a limited power mode, and the output torque of the electric vehicle is determined according to the accelerator demand torque and a preset driving torque limiting proportion. According to the method, when the accelerator pedal and the brake pedal are stepped down at the same time, the driving intention of a driver can be met to the maximum extent, and the safety of a vehicle and the drivability under special working conditions are improved.

Description

Technical field [0001] The present invention belongs to the field of electric vehicles, in particular, to a brake control method, device, and electric vehicle. Background technique [0002] The electric vehicle generally controls the vehicle acceleration by the throttle pedal, and the brake pedal controls the vehicle deceleration. A portion of the electric vehicle has a single pedal mode, that is, the driver can only control the vehicle acceleration and deceleration by operating the throttle, but requires an emergency acceleration, still inseparable Take a brake pedal. Therefore, the driver's misoperation occurs during the daily driving process, which causes the throttle pedal and the brake pedal to step on the safety risk. When the vehicle, the vehicle will enter the zero torque mode when the throttle brake is stepped on, and the vehicle is guaranteed, but the vehicle completely lost the power. If there is a phenomenon of brake pedal card, the vehicle will not move; Some of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20B60L7/10
CPCB60L15/20B60L7/10B60L2250/26B60L2240/423Y02T10/72
Inventor 郑潮雄梁海强储琦
Owner BEIJING ELECTRIC VEHICLE
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