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Device and method for judging brake instancy

A technology of urgency and brake lights, which is applied in the field of vehicle brake urgency devices, can solve problems such as increasing driving danger, and achieve the effects of reducing traffic accidents, convenient installation and disassembly, and reducing danger

Active Publication Date: 2009-07-08
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the driver has to perform different operations according to the degree of urgency of stepping on the brakes. If the automatic transmission does not perform different shift schedules when the urgency of braking is different, it will increase the risk of driving.

Method used

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  • Device and method for judging brake instancy
  • Device and method for judging brake instancy

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Embodiment Construction

[0011] Hereinafter, the present invention will be further described in detail through specific embodiments in conjunction with the accompanying drawings.

[0012] Such as figure 1 Shown is the structure diagram of the device for judging braking urgency of the present invention. The device includes a pair of position sensors 1, a brake pedal 2, a micro-control unit 3 (English full name: Micro Control Unit; English abbreviation: MCU) and an automatic transmission 4. The brake pedal 2 has four positions A, B, C, and D. Position A represents the natural position of the brake pedal 2 when the brake pedal 2 is not stepped on; position B represents the start position of the brake light switch, that is, when the brake pedal 2 is lower than the B position, the brake light is activated, and the brake pedal 2 The brake light is turned off when the position is higher than the B position; the C position represents the balance position of the braking force and the slope resistance, that is, wh...

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PUM

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Abstract

The invention discloses a device and method capable of judging the emergency degree of braking. The device includes a brake pedal, a dual-position sensor, a micro control unit and an automatic transmission. The dual-position sensor is installed on the brake pedal to sense the The different positions of the brake pedal are located, and the signals of the two positions of the brake pedal are sent to the micro control unit, and the micro control unit judges the urgency of stepping on the brake according to the time difference of the received position signals, so that the automatic transmission performs the same operation as Shift schedules adapted to brake urgency. The invention also discloses a method for judging the emergency degree of braking. The beneficial technical effect of the present invention lies in: judging the emergency degree of braking to reduce the danger of driving a vehicle and reduce the occurrence of traffic accidents.

Description

Technical field [0001] The invention relates to a device and method capable of judging the emergency degree of braking, in particular to a device and method capable of judging the emergency degree of braking of a vehicle equipped with an automatic transmission. Background technique [0002] When a vehicle equipped with an automatic transmission is in motion, if the vehicle decelerates normally, the driver will slowly step on the brake, and the vehicle speed will drop to a certain value (the automatic transmission system shifts gears according to vehicle speed, accelerator, acceleration and other parameters). The vehicle will downshift. When the driver brakes suddenly, the required shifting pattern is different from that when the vehicle is decelerating normally. At this time, when the driver is stepping on the brake, the accelerator must be loosened to the end to reduce the speed of the vehicle's engine, and the clutch cannot be separated, and the transmission does not perform ge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/18B60W10/10B60W30/18B60W10/101B60W10/192B60W30/08
Inventor 唐新颖
Owner BYD CO LTD