Latch control device for vehicle doors
A technology of control devices and latches, which can be applied to vehicle locks, electric vehicle locks, locks operated by non-mechanical transmission, etc., and can solve problems such as failure to detect abnormal states, insufficient engagement of pawls and latches, etc.
Active Publication Date: 2017-05-03
HONDA LOCK MFG CO LTD
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Problems solved by technology
[0007] However, there is a possibility that when the pawl (claw) moves from the pawl releasing position to the pawl engaging position, the pawl (claw) may not reach the pawl completely due to malfunction caused by deterioration of the transmission mechanism or the pawl. In this case, the pawl and the latch are not engaged sufficiently when the door is closed, and the door cannot be kept completely closed. There is a possibility that the engagement between the pawl and the latch may be disengaged due to vibration. However, in the content disclosed in the above-mentioned Patent Document 1, such an abnormal state cannot be detected.
Method used
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no. 1 Embodiment approach
[0048] First of all, in figure 1 In the vehicle compartment 17 of the passenger vehicle, for example, the driver’s seat 18 is arranged on the right side of the front part, and the inner surface of the front side door D on the side of the driver’s seat 18 is provided for the vehicle user of the driver seat 18 to view the front part. The inner handle 21 for opening and closing the side door D.
[0049] Reference figure 2 An outer handle 19 for opening and closing the front door D is provided on the outer surface of the front door D on the driver seat 18 side, and a cylinder lock 20 is attached to the outer handle 19. In addition, the front door D on the driver’s seat 18 side is provided with a latch mechanism 22 that can switch between the latched state and the unlatched state. In the latched state, the latch mechanism 22 The front side door D is engaged with the vehicle body to maintain the closed state of the front side door D, and the front side door D can be opened in the unla...
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A vehicle door latch control device is provided in which power from an electric actuator that is controlled by a control unit is transmitted via transmission means to a ratchet that can engage with a latch that engages with a striker on a vehicle body side and pivots, wherein a first switch detects whether or not the ratchet is in a ratchet engagement position, a second switch (120) detects that the transmission means (53) has operated until the ratchet (41) attains the ratchet engagement position based on an operating position of an operating member (71) forming part of the transmission means (53), and the control unit (122) that controls actuation of the electric actuator (24) determines that there is an abnormal state when the switching mode of the first switch (51) is unchanged at the time the second switch (120) changes switching mode. This enables an abnormal state in which engagement of a ratchet with a latch becomes insufficient when a door is closed to be detected when such an abnormal state occurs.
Description
Technical field [0001] The present invention relates to a latch control device for a vehicle door. The latch control device for a vehicle door includes: a latch that engages with a striker on the vehicle body side as the door is rotated to the closed side The pawl, which moves between the pawl engagement position and the pawl release position, wherein, in the pawl engagement position, the pawl can be in the fully closed state and the half-open state of the door and The latch is engaged, at the pawl release position, the pawl is released from the latch; the electric actuator is used between the pawl engagement position and the pawl release position The power to drive the pawl; a transmission mechanism, which is provided in the electric actuator and the electric actuator in such a manner that the pawl is located at the pawl release position in the non-operating state of the electric actuator Between the pawls; and a control unit that controls the action of the electric actuator. ...
Claims
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IPC IPC(8): E05B85/26E05B47/00E05B81/68
CPCE05B81/16E05B17/10E05B41/00E05B79/20E05B81/06E05B81/14E05B81/54E05B81/58E05B81/64E05B81/66E05B81/68E05B81/76E05B81/78E05B83/36E05B85/12E05B85/26E05C3/12
Inventor 高妻宏行栗山和幸
Owner HONDA LOCK MFG CO LTD