The invention is directed to a motor vehicle locking device, comprising a motor vehicle locking module and an electronics module, said electronics module being spatially and functionally separated from the motor vehicle locking module, wherein the motor vehicle locking module and the electronics module are connected to exchange data and optional are connected regarding power supply, the motor vehicle locking device further comprising a first plug connector for connecting the electronics module directly to the motor vehicle locking module to establish a mechanical and data connection between the modules and optionally a power supply connection between the two modules, and wherein the first plug connector is designed to be plugged in the modules to established said connections and plugged out of the modules to sever said connections.

A method and device for unlatching a door from a frame, using a keyless door latch system, is provided. In one embodiment, a secondary unlocking component receives a signal and derives power from the signal to provide a power source for the keyless door latch system. A microcontroller generates a control signal and an actuator, in response to receiving the control signal, actuates the secondary unlocking component, which allows an energy source, from an exterior of the door, to be transferred to the keyless door latch system for the unlatching of the door.

A method and device for unlatching a door from a frame, using a keyless door latch system, is provided. In one embodiment, a secondary unlocking component receives a signal and derives power from the signal to provide a power source for the keyless door latch system. A microcontroller generates a control signal and an actuator, in response to receiving the control signal, actuates the secondary unlocking component, which allows an energy source, from an exterior of the door, to be transferred to the keyless door latch system for the unlatching of the door.

A vehicle tailgate locking device including an external door handle switch configured to be turned on and off in response to operation of an external door handle, a latch assembly including a latch member configured to engage or disengage a striker by rotation, a pawl member configured to restrain or release the latch member, and a latch motor configured to rotate the pawl member to release the latch member, and a controller configured to control power to be supplied to the latch motor in response to the external door handle switch being turned on, to stop the power supplied to the latch motor in response to either the external door handle switch being turned off after the external door handle switch is turned on or an elapse of a preset time.

A power-supply control system includes: a lock control unit that controls a door-lock device; and a travel control unit that controls a travel operating unit related to either driving the power of the vehicle, braking the vehicle, or steering the vehicle. A lock high-level control unit, in a state in which supply of electric power to the lock control unit, the travel operating unit, and the travel control unit is stopped, while the first trigger signal is not outputted from an operation unit, makes electric power not be supplied from a power supply to the lock control unit, the travel operating unit, and the travel control unit, and when the first trigger signal is outputted, starts to supply electric power from the power supply to the lock control unit and the door-lock device and makes the lock control unit execute control to unlock the door-lock device.

A power-supply control system includes: a lock control unit that controls a door-lock device; and a travel control unit that controls a travel operating unit related to either driving the power of the vehicle, braking the vehicle, or steering the vehicle. A lock high-level control unit, in a state in which supply of electric power to the lock control unit, the travel operating unit, and the travel control unit is stopped, while the first trigger signal is not outputted from an operation unit, makes electric power not be supplied from a power supply to the lock control unit, the travel operating unit, and the travel control unit, and when the first trigger signal is outputted, starts to supply electric power from the power supply to the lock control unit and the door-lock device and makes the lock control unit execute control to unlock the door-lock device.

A motor-driven door latch for a vehicle includes a catch part which is caught on a striker mounted on the vehicle. A door locking and releasing part includes a main motor and applies torque to the catch part through the main motor to allow the catch part to be locked to or released from the striker. A motor-driven emergency door releasing part is provided with an auxiliary motor and is contacted with the door locking and releasing part. An inside emergency operating lever is connected with an inside handle installed at the door for the vehicle. An outside emergency operating lever is connected with an outside handle installed at the door for the vehicle. A manual emergency door release part is connected with the inside emergency operating lever.

A system includes a latch circuit configured to monitor a switch and to operate an electronic latch based on a position of the switch. The system also includes a power supply circuit configured to provide a first voltage level to the latch circuit during normal operations and a second voltage level to the latch circuit during power loss. The power supply circuit includes a primary power circuit configured to provide the first voltage level to the latch circuit and a plurality of supercapacitors configured to be charged by the primary power circuit and provide the second voltage level to the latch circuit.

A system includes a latch circuit configured to monitor a switch and to operate an electronic latch based on a position of the switch. The system also includes a power supply circuit configured to provide a first voltage level to the latch circuit during normal operations and a second voltage level to the latch circuit during power loss. The power supply circuit includes a primary power circuit configured to provide the first voltage level to the latch circuit and a plurality of supercapacitors configured to be charged by the primary power circuit and provide the second voltage level to the latch circuit.

A key and lock set for a vehicle includes: a vehicle lock set with both vehicle door lock and vehicle engine start lock; a passcode for mechanical lock; a rotary mechanical passcode dialer or push-button mechanical passcode keypad that is mounted in vehicle and accessible from vehicle outside; an electronic key in the form of a card key, tag key, passcode or biometric for an electronic lock, wireless key with a built-in power source, portable electronic appliance with key software or key hardware of cell phone, smart phone, tablet, computer, smart watch, digital camera or digital multimedia player; and an electronic key identifier that is mounted in vehicle for the electronic key.