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Single-pedal control system and method for pure electric vehicle

A technology of pure electric vehicles and control methods, applied in the field of single-pedal control systems, can solve problems such as complex structures, and achieve the effects of improving safety, avoiding dangerous accidents, and reducing costs

Inactive Publication Date: 2015-09-23
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen that in order to realize the function of a single pedal to control the normal driving of the vehicle, the "single" pedal operation is often achieved through the structure of the pedal itself, so that the two pedals can work together to achieve "single" pedal operation. pedal structure

Method used

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  • Single-pedal control system and method for pure electric vehicle

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Embodiment Construction

[0037] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0038] The realization of the control function of the single pedal of the present invention is to retain the original structure of the pure electric vehicle, cancel its accelerator pedal, and pass the full stroke (0-100%) of the brake pedal through two pedal opening nodes A, B It is divided into braking section and non-braking section (sliding section and acceleration section); among them:

[0039] 0-A is the braking section where the braking system participates in the work, and the 0-100% brake pedal opening of the original braking system corresponds to the newly set A-0, that is, when the pedal opening is A, the braking force is 0, when the pedal opening is 0, the braking force of the braking system is maximum;

[0040] A-100% is the non-braking segment that the braking system does not participate in work, and it ...

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Abstract

The invention provides a single-pedal control system and method for a pure electric vehicle. The single-pedal control system comprises a single pedal, a whole vehicle controller, a motor controller and a braking system main-cylinder pressure regulator, wherein the single pedal is provided with an opening sensor; the single pedal and the opening sensor are connected to the whole vehicle controller through a rigid line; the motor controller and the braking system main-cylinder pressure regulator are respectively connected with the whole vehicle controller through a CAN bus; the whole vehicle controller divides the running conditions of the pure electric vehicle into a braking segment, a sliding segment and an acceleration segment according to the opening information of the single pedal, which is acquired by the open degree sensor. The segmented single pedal can meet requirements for running states, such as advancing / backing, sliding, braking, and the like, of the vehicle, so that the conventional two-pedal or three-pedal structure operations are simplified into single-pedal operations: deeply stamping the pedal so as to enable the vehicle run, moderately stamping the pedal so as to enable the vehicle to slide, slightly stamping the pedal so as to brake the vehicle, and loosening the pedal so as to stop the vehicle.

Description

technical field [0001] The invention relates to a single-pedal structure of a pure electric vehicle, in particular to a single-pedal control system and a method for a pure electric vehicle. Background technique [0002] At present, cars equipped with manual transmissions usually have a three-pedal structure including a clutch pedal, an accelerator pedal and a brake pedal, and cars equipped with an automatic transmission usually have a two-pedal structure including an accelerator pedal and a brake pedal. Electric vehicles are usually equipped with a single-stage reducer or an automatic transmission, so a double-pedal structure is generally used. The two pedals can control the two working conditions of the vehicle, acceleration and braking, respectively. In the actual driving process (especially for the driver novice), for the above-mentioned three-pedal or two-pedal structure, the phenomenon that a safety accident may occur due to the driver stepping on the pedal by mistake. ...

Claims

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Application Information

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IPC IPC(8): B60L15/00B60L15/20
CPCY02T10/72
Inventor 柯南极朱波何志忠田宇黎
Owner BEIJING ELECTRIC VEHICLE
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