airbag system

Abstract

The invention discloses a safety airbag system. The safety airbag system comprises a plurality of detonating machines, a plurality of airbag modules, an airbag bus, a bus controller and a bus controller energy-storage capacitor. The detonating machines are used for detonating a plurality of airbags respectively; the airbag modules are connected with the detonating machines in a one-to-one correspondence manner, comprise boosting energy storage capacitors, and provide detonation voltage for the detonating machines through the boosting energy storage capacitors; the airbag modules are connected in parallel into the airbag bus; the bus controller is connected with the airbag bus and is used for achieving control and power supply of the airbag modules; and the bus controller energy storage capacitor is connected with the bus controller, and supplies power to the bus controller when a circuit between an input power source and the bus controller is disconnected. According to the safety airbag system, the higher safety is achieved.

Description

technical field [0001] The invention relates to the technical field of automobile safety, in particular to an airbag system. Background technique [0002] At present, the airbag control system is often used in the airbag control of automobiles, such as figure 1 Shown is a conventional general-purpose airbag system. When a collision occurs, figure 1 The working principle of the general-purpose airbag system shown is: the acceleration sensor 7 detects the collision acceleration, and after being analyzed and confirmed by the microcontroller 8, an instruction is sent to the ignition drive module 9, and multiple airbag module detonators 10 and 11 connected externally are driven by current to detonate. Deploy the airbag module. [0003] The problem with this general airbag system is that each airbag module connection requires two wire harnesses. When the number of required airbag modules increases, the wire harnesses also increase accordingly, resulting in complex interfaces an...

AI Technical Summary

Problems solved by technology

[0003] The problem with this general-purpose airbag system is that each airbag module connection requires two wire harnesses. When the number of required airbag modules increases, the wire harnesses also increase accordingly, resulting in complex interfaces and connection wiring, and increasing potential connection problems.

At the same time, since the wiring harness is directly connected to the detonator of the airbag module, when the wiring harness is short-circuited to the power supply or ground, there is a risk of false deployment of the airbag

In addition, differences in loading configuration lead to product differentiation, which directly increases manufacturing and management costs

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