Multiple rpm indicating tachometer for motor vehicles

A tachometer for a motor vehicle includes a controller adapted to provide a current rpm value at a current gear which is engaged and at least one predicted rpm value at a different gear which is not currently engaged. A display is operatively connected to the controller and is adapted to produce an...

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Bibliographische Detailangaben
Hauptverfasser:	SIMULA STEPHEN, HAYASHI TOSHIAKI, KEIZER FLORIS H.J.F, SHILLING HENRY, HORWITZ STEPHANIE, UEDA TARO
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE AUXILIARY DRIVES FOR VEHICLES BLASTING CALCULATING CHECKING-DEVICES COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERATING RANDOM NUMBERS HEATING INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MEASURING MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICS REGISTERING OR INDICATING THE WORKING OF MACHINES TESTING THERMAL INSULATION IN GENERAL TIME OR ATTENDANCE REGISTERS TRANSPORTING VEHICLES IN GENERAL VOTING OR LOTTERY APPARATUS WEAPONS
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Beschreibung
Zusammenfassung:	A tachometer for a motor vehicle includes a controller adapted to provide a current rpm value at a current gear which is engaged and at least one predicted rpm value at a different gear which is not currently engaged. A display is operatively connected to the controller and is adapted to produce an observable indication of the current rpm value and an observable indication of the predicted rpm value. By displaying predicted rpm values for different gears, the motor vehicle operator can easily see the effect of shifting gears so that the gears can be shifted in a manner to obtain optimum performance of the motor vehicle. The display preferably produces an observable indication of the current gear number near the current rpm value and an observable indication of the different gear number near the observable indication of the predicted rpm value. The display also preferably produces an observable indication of a power-peak rpm value and an observable indication of a torque-peak rpm value to aid the motor vehicle operator in obtaining optimum performance. In one embodiment, the current rpm value is displayed as an arc-shaped bar graph with a height increasing from a low rpm end of the graph to a high rpm end of the bar graph. The predicted rpm values are arc-shaped bar graphs located adjacent the graph indicating the current rpm value. All of the bar graphs utilize common scale numbers with the graphs indicating predicted rpm values of lower gears located below the graph indicating the current rpm value and graphs of predicted rpm values of higher gears located above the graph indicating the current rpm value. A numerical indication of the current gear is located at the end of the graph indicating the current rpm value and numerical indications of higher and/or lower gears are located at the end of the graphs indicating the predicted rpm values. In alternative embodiments, the current and predicted rpm values are as adjacent vertical linear bar graphs, horizontal linear bar graphs, coaxial circular bar graphs, and separate spaced-apart circular graphs.