Control system for engine speed meter
First Claim
1. A bar-type speed indicator for indicating the speed of a machine comprising a bar-type of display having a plurality of sections each indicating a specific segment of speed range of said machine, speed sensing means for sensing the speed of said machine and providing an output to said display, means for actuating the section representing the speed of the machine in response to the output signal of said speed sensing means when the detected speed falls within the range of that respective section, and means providing a warning signal from at least one of said sections when the speed sensed is other than a specific speed.
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Accused Products
Abstract
A bar-type tachometer for indicating the speed of an engine and for providing a warning signal when the engine deviates from a predetermined, desired speed such as the desired idle speed>, In this way, even though the display covers a range of engine speeds, it is possible to establish a desired speed within that range, such as the setting of the actual desired idle speed.
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Citations
31 Claims
- 1. A bar-type speed indicator for indicating the speed of a machine comprising a bar-type of display having a plurality of sections each indicating a specific segment of speed range of said machine, speed sensing means for sensing the speed of said machine and providing an output to said display, means for actuating the section representing the speed of the machine in response to the output signal of said speed sensing means when the detected speed falls within the range of that respective section, and means providing a warning signal from at least one of said sections when the speed sensed is other than a specific speed.
- 15. A method of setting a specific speed for an engine having a bar-type speed indicator for indicating the speed of the engine comprising a bar-type of display having a plurality of sections each indicating a specific segment of speed range of the engine, speed sensing means for sensing the speed of said engine and providing an output signal, said method comprising the steps of actuating at least the display section representing the range including the sensed engine speed in response to the output of the speed sensing means unless the engine speed is other than a specific speed, if the speed is other than the specific speed then flashing the display of at least one section until the engine speed is adjusted to the specific engine speed.
- 18. A bar-type speed indicator for indicating the speed of a machine comprising a bar-type of display having a plurality of sections each indicating a specific segment of speed range of said machine, speed sensing means for sensing the speed of said machine and providing an output to said display, means for actuating the respective section representing the speed of the machine and all sections representing speeds lower than the detected speed in response to the output signal of said speed sensing means when the detected speed falls within the range of that respective section, and means providing a warning signal from at least one of said sections when the speed sensed is other than a specific speed.
Specification