摘要:
An AM/FM modulation scheme is presented for optimizing communications between a remote control device held by a user and a receiving unit installed in a vehicle. Historically, these systems communicated with amplitude modulated signals having good range but poor immunity to ambient random radio frequency noise. Frequency modulated systems provide improved immunity to noise however at the expense of range. The object of this invention is to use two or more modulation modes to combine their advantages. A scheme has been devised whereby circuitry capable of alternately operating in at least two modes is used. The same information is therefore transmitted using two or more modulation techniques in succession. The receiving unit also has circuitry and has listening cycles ensuring eventual synchronization with the transmitting unit. If one mode fails due to distance or ambient noise, the other can then attempt to establish a link.
摘要:
A system for remotely starting a motor of a vehicle and also capable of operating various vehicle accessories such as alarm system, door locks, door windows, trunk latch, etc. The system comprises a portable hand-held transmitter generating a command in the form of a binary coded sequence and a controller mounted in the vehicle for operating the vehicle's motor and accessories in dependence thereon. The system is characterized by a novel encoding scheme of the digitized sequence that prevents command misinterpretation by the controller, thereby avoiding an unintended avocation of the vehicle's motor or another accessory.
摘要:
An AM/FM modulation scheme is presented for optimizing communications between a remote control device held by a user and a receiving unit installed in a vehicle. Historically, these systems communicated with amplitude modulated signals having good range but poor immunity to ambient random radio frequency noise. Frequency modulated systems provide improved immunity to noise however at the expense of range. The object of this invention is to use two or more modulation modes to combine their advantages. A scheme has been devised whereby circuitry capable of alternately operating in at least two modes is used. The same information is therefore transmitted using two or more modulation techniques in succession. The receiving unit also has circuitry and has listening cycles ensuring eventual synchronization with the transmitting unit. If one mode fails due to distance or ambient noise, the other can then attempt to establish a link.
摘要:
An apparatus for the installation of a defroster of the resistive type on the rear window of a completely assembled motor vehicle. The defroster comprises heating conductors in the form of thin pre-glued strips of solid copper or copper alloy applied to the inside surface of the rear window in a first direction with two spaced apart connecting conductors in the traverse direction. The apparatus is used for applying the various parallel heating conductors to the inside surface of the window. It comprises a guide member temporarily retained against the inside surface of the rear window, and a carrier having a head which receives and applies the strips of pre-glued copper conductor to the rear window, a base adapted to roll along the guiding edge defined by the guide member, and an upright shaft for supporting the head affixed, adjustable distance away from the base. The head is free to rotate around the axis of the shaft at least within limits, and it is also pivotable about an axis which is perpendicular to the shaft and parallel to the window engaging member of the head.
摘要:
A motion sensor capable of detecting the direction of motion in three dimensions is disclosed. The motion sensor can be built into a printed circuit board allowing for simple and cost effective manufacturing. The motions sensor is designed to utilize a through hole in a printed circuit board, which is capped by on each side by housings creating a cavity where a spherical metal ball can move in three dimensions. This interior surface of the through hole and the housings have conductive element that when in contact with the spherical metal ball close a circuit creating an electrical signal indicative of direction.
摘要:
A slave controller for a remote vehicle starting system. The slave controller is mounted in a vehicle having an internal combustion engine started by a starter motor. The slave controller has an antenna circuit input for connection to an antenna circuit suitable for picking up an RF signal and an output. The slave controller also has a control module, coupled to the antenna circuit input. The control module is responsive to a signal transmitted through the antenna circuit input and originating from the antenna circuit to generate a command signal at the output for directing the starter motor to crank the internal combustion engine. The control module is operative to establish a data communication with an external entity through the antenna circuit input to perform a maintenance procedure.
摘要:
A slave controller for mounting in a vehicle having an engine for driving at least one wheel of the vehicle via a manual transmission and a cabin having a plurality of components for operation by a user of the vehicle while in the cabin. The slave controller has a control module responsive to an RF signal conveying an engine start command for starting the engine of the vehicle. The control module is capable of performing a transmission state check to determine if the engine is in a driving relationship with the wheel. When the transmission state check is performed and the control module determines that the engine is in a driving relationship with the wheel, the control module acquires an operational state preventing starting of the engine in response to the RF signal. The control module is responsive to actuation of one or more of the plurality of components to initiate the transmission state check.
摘要:
An automotive opto-electric starter interlock for use in a motor vehicle for the purpose of preventing the engine from being remotely started unless the transmission is in neutral. The starter interlock includes an optical sensors array mounted to the transmission shift linkage. The output of the sensors is dependent upon the position of the shift linkage, hence allowing to determine if the transmission is in neutral. A microprocessor stimulates the sensors and observes their response to determine the position of the shift linkage. The information supplied by the sensors is also used to detect system malfunctions.
摘要:
A slave controller for a remote vehicle starting system. The slave controller is mounted in a vehicle having an internal combustion engine started by a starter motor. The slave controller has an antenna circuit input for connection to an antenna circuit suitable for picking up an RF signal and an output. The slave controller also has a control module, coupled to the antenna circuit input. The control module is responsive to a signal transmitted through the antenna circuit input and originating from the antenna circuit to generate a command signal at the output for directing the starter motor to crank the internal combustion engine. The control module is operative to establish a data communication with an external entity through the antenna circuit input to perform a maintenance procedure.
摘要:
A slave controller for a remote vehicle starting system. The slave controller is mounted in a vehicle having an internal combustion engine started by a starter motor. The slave controller has an antenna circuit input for connection to an antenna circuit suitable for picking up an RF signal and an output. The slave controller also has a control module, coupled to the antenna circuit input. The control module is responsive to a signal transmitted through the antenna circuit input and originating from the antenna circuit to generate a command signal at the output for directing the starter motor to crank the internal combustion engine. The control module is operative to establish a data communication with an external entity through the antenna circuit input to perform a maintenance procedure.