Latch Features Flashcards
Door Status Sensing
Provides the driver with real-time information and at all time -the status of door and the latch mechanism. The mechanism is adapted with position sensors to report to the driver the state of the mechanism at all times. It reports if the door is latched, open or in secondary ( i.e. Ajar). It reports if the latch is functioning as intended at all time
Redundancy
Provides redundancy to the Door status sensing
Door Status Sensing
In order to prevent the probability of faulty signals, the mechanism is adapted with duplicate independent sensors to report on the state of the door.
One Pulse Release
Enables the release of the door after the initiation of just one release request
The mechanism is adapted to ensure release is completed after initiating just one release request. It is particularly intended to ensure if the door is iced up, so that the focus is shifted on efforts to push or pull the door open.
More importantly, it is necessary to ensure the door open assist mechanism (with optional Ice Breaker) does not operate against a latched door should one be used in conjunction with the latch.
It also enables timely coordination between the release request, drop glass and the door open assist mechanism such that the door open mechanism operation is perceived as a smooth continuation of the release actuation
Over the Air or In Situ
Enables the reprogramming of the latch remotely or in situ at any point in time
Programming
The latch is adapted to be programmed direct serial or via LIN as and when required without the need for physical access to the latch or removal of the latch.
LIN or CAN
Enables the exchange of data between the latch and associated devices in the car
Depending on customer specifications, The latch is adapted to provide communication on either LIN or CAN network
Operating Software
Enable all functionality of the latch and all communications with the Vehicle Body Controller
The mechanism is programmed with Chevalier proprietary firmware.
Inline Lock
Enables and disables the operation of the manual release
This is an external device fitted inline (integrated with) the Bowden Cable and intended to neutralize the mechanical release lever/handle as and when required
This device is very small and weighs less than 100 grams. It comes integrated with the latch assembly and does not require any intervention during fitment in the vehicle
Anti- Trap
To prevent objects trapped between the door and its frame from sustaining serious damage. The clinch operation will stop and return to neutral. This feature is not dependent on electrical control and regardless of the level of voltage being supplied to the actuator or the environmental conditions, the clinch operation will invariably stop and return to neutral.
Adaptive Anti-pinch
To prevent damage to entrapped objects and fingers by detecting nuances of change in the load being driven by the actuator with respect to the specific bracket of clinch travel. This is an additional software designed to take into account all relevant conditions at any point in time during the clinch travel in order to provide adequate power safely.
Emergency Manual Release
Disengages the claw from the striker at any point in time including during the power clinch operation. Pulling the release lever (door handle) during the power clinch operation will instantly release the door and stop the actuator, as the safety clutch is responsive to the manual release lever at all times and conditions
Manual Release
There are 2 release levers to enable door release from in/out of the vehicle. Sensors are responsive to the movement of the release levers. By operating either of the release levers within the free travel segment “5mm of Pre-travel”, the door handle effectively acts as a button or a switch. Manual Release enables manual door release with instantaneous interruption of the clinch operation. It can also be coupled to the Key barrel lock. (With a “PKE” system, this arrangement is intended to enable simultaneous unlock and release of the door in the shortest time possible.) This arrangement is also used to trigger the alarm when the car is locked. It enables the fastest possible drop glass in convertible cars. (It makes redundant the need to use an external, standalone switch to enable electrical release.)
Clinch Bypass
Slamming door to Primary always bypasses the clinch operation (The mechanism can always function in a conventional manner in that the power clinch can be bypassed and the manual release operated as per usual.)
E- Release
This means to open the door by responding to an electrical request- remotely open the door by pressing a button in the key fob, a contact or non-contact switch placed in the door handle. (In the Chevalier system a number of contactless sensors are integrated in the latch) – with the purpose of???
