Micro-switch type automotive central door lock fastener and production process thereof

Abstract

The invention relates to a micro-switch type automotive central door lock fastener and a production process thereof. The micro-switch type automotive central door lock fastener comprises a shaft snap spring, a fastener action output oscillating bar, a sealing ring, a reset torsion spring, a worm gear, a locking cushion, a fastener output shaft, a sector gear, an unlocking bumper block, a driving cam bit, a worm gear rotating shaft, a lower fastener shell, a motor electrode, a micro-switch binding post, a micro-switch, a motor, a pinion, a worm and an upper fastener shell. A signal extraction mechanism of the central door lock fastener utilizes the high-performance micro-switch to substitute for a reed and a slip sheet of a traditional fastener, and corresponding mechanisms of the fastener are appropriately designed and adjusted.

Description

technical field [0001] The invention belongs to the field of automobile central control door locks, and in particular relates to a micro switch type automobile central control door lock locker and a production process thereof. Background technique [0002] The function of the general locker is to convert different electrical signals input by the body module controller (ie ETACS or BCM) into different mechanical movements to realize electric locking and unlocking actions. [0003] The car central control door lock locker can not only convert the different electrical signals input by the module controller into different mechanical movements to realize the electric locking and unlocking actions; it can also convert the input mechanical movement mode into the body module controller An identifiable electrical signal, so that the body module controller can control the locking and unlocking actions of other electric door locks of the whole vehicle. [0004] The car central control...

AI Technical Summary

Problems solved by technology

[0010] When the lock mechanism is in the normal open state, due to the above factors, the contact resistance between the reed of the locker and the sliding piece increases or the resistance value is unstable, and the fluctuation time of the resistance value is too long, the instantaneous abnormal signal (which should be small Resistance "closed" state, but accidentally turned into high resistance "open" state), through the fixed logic analysis of BCM, often output the wrong instruction of locking, resulting in all doors being locked, this is automatic locking

[0011] The main principle of the sliding plate type locker before the change: when the sliding plate connects the two wires, the BCM outputs an unlock signal. In this state, the whole car lock is in the unlocked state. As a result, the BCM detects that the voltage at the monitoring point is in a non-zero state, and the voltage value reaches a certain level, and the BCM considers the detected "off" input. Due to the sliding contact feature, it cannot detect the "off" input once , the BCM will issue a lock command, but add an additional condition to the BCM, that is, when the "disconnect" input is maintained for a certain length of time, it is the BCM that will issue a lock command, which is the above-mentioned "by time As a constraint", this "time" cannot be set too long, which may lead to "sluggish" response of the lock system, generally set to 80ms-120ms, but the contact characteristics of the sliding plate locker are closely related to the manufacturing and process, usually In many cases, many manufacturers cannot effectively control their contact characteristics

Even with BCM increasing the "time" to 180ms there is still an auto-lock issue

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