Refrigeration – Automatic control – Responsive to vehicle body motion or traction
Patent
1995-11-15
1997-07-08
Tanner, Harry B.
Refrigeration
Automatic control
Responsive to vehicle body motion or traction
62126, 62243, 623231, B60H 132
Patent
active
056449240
ABSTRACT:
A control system for the use of the main engine of a vehicle as a heat source in maintaining the temperature of an operator compartment. The system is manually enabled subject to multiple criteria, the temperature in the operator compartment is monitored, and signals for the desired operator compartment temperature within an about plus or minus 10 degrees control range are produced. The main engine of the vehicle is enabled to start and run by all standard safety features and with a fuel flow controlled idle power output. Cycling through the starting and stopping of the engine is accomplished in response only to the temperature monitor signals. Disconnect of the operator compartment temperature control is accomplished manually by the operator, usually by actuating the operator controls. The invention provides the added safety feature of focused operator attention at enablement; the added control feature of system hysteresis through the use of a temperature range to prevent over regulation and any added idling is only that needed for operator compartment temperature maintenance.
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Detroit Diesel--Optimized Idle tm--Sales Literature--Est. 1995 -2 Pages.
Carr Douglas E.
Sandborg Thomas R.
Caterpillar Inc.
Riddles Alvin J.
Tanner Harry B.
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