CN205440112U

CN205440112U - Vehicle emergency brake warning device

Info

Publication number: CN205440112U
Application number: CN201620260015.6U
Authority: CN
Inventors: 陈刚
Original assignee: Yangzhou Chaohua Investment Co Ltd
Current assignee: Yangzhou Chaohua Investment Co Ltd
Priority date: 2016-03-31
Filing date: 2016-03-31
Publication date: 2016-08-10
Anticipated expiration: 2026-03-31

Abstract

The utility model discloses a vehicle emergency brake warning device, including vehicle CAN bus (1), stop lamp switch (2), detection module (3), control module (4), braking banks (5), detection module (3) real time monitoring speed of a motor vehicle signal in the vehicle CAN bus (1) with the signal of stop lamp switch (2) is at the vehicle in order to go at high speed and to command when taking place emergency braking control module (4) control the light of braking banks (5) glimmer with corresponding frequency, though take place the braking or the speed of a motor vehicle is higher commands when being ordinary braking when the speed of a motor vehicle is lower control module (4) control the light of braking banks (5) is long bright. The utility model discloses an emergency braking signal is just transmitted to the flicker frequency of braking light, and the urgent degree and the emergence of corresponding regulation self road speed in order to reduce or even to avoid the rear -end collision of front truck braking rapidly, are clearly known to messenger back car driver.

Description

A kind of emergency brake of vehicle alarming device

Technical field

This utility model relates to automobile technical field, refers specifically to car braking alarming device.

Background technology

Along with expanding economy, motor vehicles society recoverable amount improves rapidly, simultaneously because the improvement of road conditions, road speed is also improving, and various rear-end collisions happen occasionally, especially in city expressway and highway, rear-end collision once occurs, and consequence is the most serious.Except driver attention is not concentrated, fail to keep outside safe distance between vehicles and misty rain ice and snow weather and the subjective and objective factor such as night is rather dark, one important reason is that existing vehicle Brake lamp president when brake pedal is bright, rear car can not be allowed directly to judge, and front truck is common braking or brake hard, according to the speed that front truck and this spacing shorten, rear car driver must just can appreciate that situation is the most urgent, thus the time that can be used for reaction in the case of the most urgent shortens, likely lose the of short duration chance taking corresponding measure immediately, abnormally dangerous.

For solving the problems referred to above, it is necessary to allow the driver at motor vehicles rear know the situation of front truck brake hard by the way of suitable.Can be by braking the brightness of light, emergency brake signal is transmitted in the change of color or light quantity, but these methods have bigger defect, not only makes it difficult for rear car driver and understands, and is difficult to because of reasons such as technical difficulty, installation site, costs.

Summary of the invention

For solving above technical problem, the utility model discloses a kind of emergency brake of vehicle alarming device, its objective is to make vehicle warning front vehicle when with higher speed traveling and generation brake hard, including vehicle CAN bus, braking light switch, detect processing module, control module, Brake lamp group；Described detection processing module monitors the GES on described vehicle CAN bus and the signal of described braking light switch in real time, the light commanding described control module to control described Brake lamp group when vehicle travels with higher speed and brake hard occurs flashes with corresponding frequencies, though there is braking when speed is relatively low or speed is higher that command described control module to control described Brake lamp group during for common braking light length is bright.

Preferably, described detection processing module is the single-chip microcomputer being connected with described vehicle CAN bus.

Preferably, described control module is PWM power supply.

Preferably, described Brake lamp group can use the existing light fixture of vehicle and bulb, it is possible to is replaced by LED bulb.

Preferably, the light flash of described Brake lamp group can be realized by the power of light rather than flickering of light.

Beneficial effect: this utility model is a preferable approach by the flicker frequency height transmission emergency brake signal of braking light, be possible not only to make rear car driver rapidly, clearly to know urgency level that front truck brakes also regulates self road speed accordingly to reduce the generation even avoiding rear-end collision, and this light signal intuitively can make rear car driver recognize emergency by the light of nature, it is not necessary to any prior training；The most easily realized by the flicker frequency transmission emergency brake signal of braking light, the design of vehicle appearance especially light fixture need not be changed, it is only necessary to arrange simple circuit, required technology maturation, reliable, with low cost.

Accompanying drawing explanation

Fig. 1 is this utility model block diagram；

Wherein, 1, vehicle CAN bus, 2, braking light switch, 3, detection processing module, 4, control module, 5, Brake lamp group.

Detailed description of the invention

As shown in Figure 1, during car braking, detection processing module 3 receives the signal of braking light switch 2, commander's control module 4 lights the light of Brake lamp group 5 immediately, start simultaneously at the GES on detection vehicle CAN bus 1, in speed less than 40 kilometers/hour, though or speed meet or exceed 40 kilometers/hour but vehicle transient accelerationThe when of not less than setting value, the light of Brake lamp group 5 keeps long bright；Speed reaches 40 kilometers/hour and vehicle transient acceleration exceedes setting value when, detection processing module 2 i.e. thinks that vehicle occurs promptly to twitch and command control module 4 to control the light of Brake lamp group 5 by certain frequency scintillation, flicker frequency is the function of vehicle transient acceleration, the biggest flicker frequency of acceleration is the highest, this flicker keeps to loosening the brake, i.e. till the blackout of braking light switch 2.

When low vehicle speeds or generation are commonly braked, light flash function does not enables, and causes driver travelling with higher speed at front truck and occurring this real reaction in emergency circumstances of brake hard impacted to avoid too much signal to make driver produce thinking set.

Comparing according to stepping on severity control light flash under brake pedal to warn this mode of rear car, this utility model controls more accurate；Comparing by Gravity accelerometer control light flash to warn this mode of rear car, this utility model is with low cost；Compare vehicle and preposition radar is installed, automatically brake to avoid to knock into the back compared with this proactive security measures with the speed that the distance of front truck and distance reduce by this car of radar surveying, this utility model is easy to implement, with low cost, can be as the low side scheme in short-term.

Claims

1. an emergency brake of vehicle alarming device, including vehicle CAN bus (1), braking light switch (2), detection processing module (3), control module (4), Brake lamp group (5), it is characterized in that, described detection processing module (3) monitors the GES on described vehicle CAN bus (1) and the signal of described braking light switch (2) in real time, the light commanding described control module (4) to control described Brake lamp group (5) when vehicle is with higher speed traveling and generation brake hard flashes with corresponding frequencies, there is braking when speed is relatively low or though speed is higher that command described control module (4) to control described Brake lamp group (5) during for common braking light length is bright.

A kind of emergency brake of vehicle alarming device the most according to claim 1, it is characterised in that described detection processing module (3) is the single-chip microcomputer being connected with described vehicle CAN bus (1).

A kind of emergency brake of vehicle alarming device the most according to claim 1, it is characterised in that described control module (4) is PWM power supply.

A kind of emergency brake of vehicle alarming device the most according to claim 1, it is characterised in that described Brake lamp group (5) can use the existing light fixture of vehicle and bulb, it is possible to is replaced by LED bulb.

A kind of emergency brake of vehicle alarming device the most according to claim 1, it is characterised in that the light flash of described Brake lamp group can be realized by the power of light rather than flickering of light.