System for changing a selected engine function based on sensed weather conditions
First Claim
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1. A system for controlling an engine for a vehicle, comprising:
- an engine controller responsive to a plurality of sensors that controls engine operation;
wherein at least one of the sensors is a precipitation sensor that determines whether precipitation is present and generates a signal that is received by the controller;
wherein the controller disables an engine brake in response to receiving the signal from the precipitation sensor.
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Abstract
A system for modifying or disabling a selected engine function in response to a determination based upon a precipitation sensor input that precipitation is present. The system also may include an ambient temperature sensor that determines whether the ambient temperature is below a predetermined level. Signals from the precipitation sensor and temperature sensor are provided to an engine controller. The engine controller functions to modify or disable a selected engine function such as a compression brake, engine exhaust brake, maximum speed calibration or passing speed variance calibration.
17 Citations
14 Claims
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1. A system for controlling an engine for a vehicle, comprising:
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an engine controller responsive to a plurality of sensors that controls engine operation; wherein at least one of the sensors is a precipitation sensor that determines whether precipitation is present and generates a signal that is received by the controller; wherein the controller disables an engine brake in response to receiving the signal from the precipitation sensor. - View Dependent Claims (2, 3)
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4. A system for controlling an engine for a vehicle, comprising:
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an engine controller responsive to a plurality of sensors that controls engine operation; wherein at least one of the sensors is a precipitation sensor that determines whether precipitation is present and generates a signal that is received by the controller;
wherein the controller reduces a maximum allowable speed limit calibration of the engine in response to receiving the signal from the precipitation sensor. - View Dependent Claims (5)
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6. A system for controlling an engine brake for a vehicle, comprising:
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an engine controller; a precipitation sensor that determines whether precipitation is present and generates a first signal that is received by the controller; a temperature sensor that determines whether the ambient temperature is below a predetermined level and generates a second signal that is received by the controller; and wherein the controller prevents operation of the engine brake in response to receiving both the first signal from the precipitation sensor and the second signal from the temperature sensor. - View Dependent Claims (7, 8, 9)
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10. A system for controlling an engine calibration corresponding to a speed rating for a vehicle, comprising:
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an engine controller; a precipitation sensor that determines whether precipitation is present and generates a precipitation signal that is received by the controller; the controller modifying the speed rating in response to receiving the precipitation signal from the precipitation sensor. - View Dependent Claims (11, 12, 13, 14)
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Specification