Speed reduction alarming method for power-driven vehicle

A technology for motor vehicles and vehicle speed, which is applied in the field of improvement of deceleration warning methods, and can solve problems such as failure to warn

Inactive Publication Date: 2005-07-27
魏晓同 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] When the accelerator pedal (accelerator) is released and the vehicle goes downhill and the gear is in a constant speed or acceleration state, it often sends out a deceleration warning error signal; when the accelerator pedal (acc

Method used

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  • Speed reduction alarming method for power-driven vehicle
  • Speed reduction alarming method for power-driven vehicle
  • Speed reduction alarming method for power-driven vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1. A deceleration warning method for motor vehicles, such as figure 1 As shown, it includes the following steps;

[0033] ① The detection step of the motor vehicle speed, using the speed sensor (1) to detect the wheel speed of the vehicle, and sending a corresponding speed signal to the comparator (2);

[0034] ②Comparing the vehicle speed signal with the zero signal with the comparator (2) and calculating the corresponding acceleration value, only when the comparison result is a negative value, enter the next step;

[0035] ③ Inputting the negative value of the comparison result into the control circuit (3) for control processing;

[0036] ④ inputting the processed signal into the amplifier (4) for power amplification;

[0037] ⑤ driving the relay switching device (5) with the amplified signal;

[0038] 6. Use the relay switch device (5) to control the warning device to issue a warning, the warning device is a light display device, and the light display dev...

Embodiment 2

[0040] Example 2. A deceleration warning method for motor vehicles, such as figure 2 shown. The steps that it comprises are the same as embodiment 1, but its steps ②~⑥ are two ways. The absolute value of the negative value of the comparison result of the other step ② is greater than the absolute value of the set value before entering the next step. The warning device of this road is an acoustic device (9) that can emit harsh sounds. Above-mentioned setting value can be determined as acceleration a=-40g, and said sound device (9) can send the sound more than 90db. When the absolute value of the negative value of the comparison result is greater than the set value, the left and right emergency lights (6) and the left and right deceleration warning tail lights (7) flash simultaneously.

Embodiment 3

[0041] Example 3. A deceleration warning method for motor vehicles, such as image 3 shown. The detection step of the motor vehicle speed in its step 1. detects the acceleration of the vehicle with an acceleration sensor (10), and sends a corresponding acceleration signal to the comparator (2);

[0042] Step 2.~5. are the same as embodiment 1;

[0043] Step 6. Use the relay switch device (5) to control the warning device to issue a warning. The warning device is a light display device, and the light display device includes left and right emergency lights (6) and left and right deceleration warning tail lights (7). But the display area of ​​the left and right deceleration warning tail lights (7) is directly proportional to the absolute value of the acceleration.

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PUM

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Abstract

A warning method of deceleration for motor-driven vehicle includes such steps as using rotation speed or acceleration sensor to measure the speed of vehicle, comparing it with zero, inputting the negative resultant to controller, processing data, inputting the data to amplifier, amplifying, driving switch element, and controlling sound and light warning devices for generating sound and light warning. Its warning back lamp is composed of mxn LEDs.

Description

technical field [0001] The invention belongs to the technical field of motor vehicles, and more specifically relates to the improvement of a deceleration warning method for motor vehicles. Background technique [0002] When a motor vehicle is running, it must warn the outside world of its own motion state that can affect safety through light, sound and other signal means. The current external warning methods include deceleration, emergency, width display, steering, license plate and lighting. [0003] Motor vehicles have three motion states: deceleration, constant speed and acceleration. Among them, the deceleration motion is one of the most important factors related to safety, and the warning of the deceleration motion state to the outside world is very important. Existing motor vehicle all is to just send deceleration warning signal when braking. One common way is to display a constant brightness light signal at the rear of the vehicle when t...

Claims

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Application Information

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IPC IPC(8): B60Q1/44G01P3/42
Inventor 魏晓同张铠
Owner 魏晓同
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