A method for active disengagement of vehicle assembly during high-speed collision
An assembly and active technology, applied in the direction of control devices, etc., can solve the problems of limited reduction of occupant injuries, no introduction of collision degree and assembly, and inability to take into account maintenance economics, etc., to achieve both occupant injury reduction and maintenance economy , Increase the effect of body deformable space
Active Publication Date: 2022-03-15
DONGFENG MOTOR GRP
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Problems solved by technology
Although it uses active disengagement technology to realize energy unloading and discloses self-explosive bolts, it only realizes the detachment of the engine gearbox, but does not realize the disengagement of other vehicle body load systems such as fuel and exhaust. Dependency Control Method Out of Combination with Assemblies
Self-explosive bolts with different positions and numbers of explosions under different collision degrees have not been realized, and maintenance economy cannot be taken into account
Method used
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[0023] The technical solution (including the preferred technical solution) of the present invention will be further described in detail below by means of the accompanying drawings and listing some optional embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0024] The invention discloses a method for actively disengaging a vehicle-mounted assembly during a high-speed collision, judging whether a collision occurs based on a collision acceleration signal; and obtaining the real-time collision speed V after judging the collision s ; Compare the real-time collision speed V one by one s Theoretical collision velocity V corresponding to the separation from the Xth assembly X , w...
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The invention discloses a method for actively disengaging a vehicle-mounted assembly during a high-speed collision, judging whether a collision occurs and the severity of the collision based on the collision acceleration signal, and the severity of the collision is determined by the equivalent collision speed V s Characterization; side-by-side comparison of collision velocity V s Theoretical collision velocity V corresponding to the separation from the Xth assembly X , when V X <V s <V X+1 When , actively disconnect the Xth assembly combination, X≥1. The present invention introduces the correlation control method of the combination of collision degree and assembly disengagement, realizes explosion of self-explosive bolts in different positions and quantities under different collision degrees, accurately controls the disengagement of the assembly, and takes into account the reduction of collision damage to occupants and the vehicle after collision Economical maintenance.
Description
technical field [0001] The invention discloses a method for disengaging a vehicle-mounted assembly during a high-speed collision, which belongs to the technical field of automobiles, and specifically discloses a method for actively disengaging a vehicle-mounted assembly during a high-speed collision. Background technique [0002] The cooling system, cooling system, power system, transmission system, exhaust system, chassis, on-board luggage rack and other devices that do not directly provide collision protection for passengers in passenger cars account for 1 / 3 to 2 / 3 of the curb weight. These devices are rigidly connected with the body, and decelerate synchronously with the body during the collision process, and its kinetic energy is absorbed by the body in a short time, increasing the energy absorption burden of the body; among them, the engine, gearbox, radiator, battery, etc. arranged in the cabin The structure also takes up energy-absorbing space, which adversely affects...
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IPC IPC(8): B60W30/08
CPCB60W30/08B60W2030/082
Inventor 周英杰钟阳常尊辉刘高陈振飞
Owner DONGFENG MOTOR GRP