Patent ID: 6801838
Filing Date: 2004-10-05
Classification: G01P

Abstract:
A device for converting vehicle speed signals, comprising:a speed gear set configured and dimensioned to be mounted between a drive shaft and a transmission of a vehicle; a vehicle speed sensor connected to the speed gear set to generate pulse signals corresponding to a vehicle speed and transmitting said signals to an electronic speedometer or tachometer; and a controller programmed to convert vehicle speed signals communicating with a switch for controlling vehicle speed signals, said controller being electrically mounted between the vehicle speed sensor and the electronic speedometer or tachometer, wherein said switch controls calculation by the controller of the pulse frequency per unit speed based on a designated speed, and wherein the controller is programmed to execute steps comprising storing in a memory factors specifying the vehicle and device characteristics, setting at least one of an input and an output reference pulse number based on said factors and on measured pulses, and calculating a number of pulses to be output to the electronic speedometer or tachometer.