Passerby protecting equipment

Abstract

The invention aims at providing a passenger protection device which has the advantages of low cost and effective protection. The passenger protection device of the invention comprises: a sensor arranged at the front part of a vehicle used for detecting impaction and generating a detecting signal; a control unit used for receiving the detecting signal of the sensor and judging whether the vehicle is impacted with the passenger and giving out a protection control signal when judging that the vehicle is impacted with the passenger; a front hatch cover lifting unit which is arranged below the front hatch cover and is used for lifting the front hatch cover after receiving the protection control signal of the control unit; a starting switch which starts the control unit after detecting that a driver starts the vehicle; an air bag and an air bag firing unit arranged in the front hatch cover, and the air bag firing unit fires the air bag after receiving the protection control signal of the control unit. The passenger protection device of the invention has the advantages of low cost and effective protection; besides, the passenger protection device of the invention can reduce the self damage of the body of the vehicle and can reduce the maintenance cost, thus having high practicability and being easy to be popularized.

Description

technical field [0001] The invention belongs to the technical field of vehicle safety protection, in particular to a vehicle pedestrian protection device. Background technique [0002] Cars have become more and more popular as a means of transportation, but more and more car accidents have also caused many pedestrian casualties. In order to solve the damage caused by the collision of automobiles to pedestrians, the patent No. CN200510055917.2 discloses a "pedestrian protection device", which is composed of a collision sensor, an electronic control unit, a lifting unit, an airbag and a height adjustment unit Yes, the crash sensor is installed at the front of the vehicle to detect a crash. When the electronic control unit determines that the vehicle collides with pedestrians, the electronic control unit controls the lifting unit, the airbag and the height adjustment unit, and when the lifting unit raises the hood of the vehicle, the height adjustment unit lowers the vehicle a...

AI Technical Summary

Problems solved by technology

This patent has the following deficiencies: 1. The height adjustment unit is expensive and difficult to popularize; in addition, after the collision occurs, the process of lifting and lowering the whole vehicle by the device is too cumbersome, and the adjustment time is the same as the lifting of the front hatch cover and the time of airbag detonation. 2. The lifting unit is not equipped with a limit structure. Although the front hatch can reduce the risk of pedestrians being hit by hard objects such as the engine after the front hatch bounces up, the front hatch bounces up too high, which may also hurt pedestrians. danger

This device has the following disadvantages: 1, the vehicle body front is equipped with multiple sensors and detection devices, which are expensive and difficult to popularize; 2, the device will not start below a certain speed per hour, so when the vehicle speed is lower than a certain speed per hour , even if it hits a pedestrian, the device will not protect the pedestrian, so it is easy to cause the pedestrian to be injured by hard objects such as the front hatch and the engine below

In summary, the existing devices for protecting pedestrians all have the disadvantages of high cost and imperfect protection.

Images