System and method for controlling a window wiper system
First Claim
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1. A system for controlling a window wiper system for a hybrid electric vehicle comprising:
- an engine; and
at least one controller configured todetermine an operating frequency of the window wiper system,determine an on/off state of the engine;
determine if the operating frequency of the window wiper system falls within a predetermined range of operating frequencies if the engine is off, andreduce the operating frequency of the window wiper system if the operating frequency of the window wiper system falls within the predetermined range of operating frequencies thereby reducing at least one of noise, vibration, and harshness associated with the operating frequency of the window wiper system.
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Abstract
A windshield wiper system for use on a hybrid electric vehicle is capable of adjusting the delay between consecutive cycles based on engine state and vehicle speed. The system includes a windshield wiper and a motor coupled to the windshield wiper. A sensor generates an engine speed signal and another sensor generates a vehicle speed signal. A processor in communication with the sensors and wiper motor provides a drive signal to the wiper motor which is based on the engine and vehicle speed.
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Citations
19 Claims
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1. A system for controlling a window wiper system for a hybrid electric vehicle comprising:
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an engine; and at least one controller configured to determine an operating frequency of the window wiper system, determine an on/off state of the engine; determine if the operating frequency of the window wiper system falls within a predetermined range of operating frequencies if the engine is off, and reduce the operating frequency of the window wiper system if the operating frequency of the window wiper system falls within the predetermined range of operating frequencies thereby reducing at least one of noise, vibration, and harshness associated with the operating frequency of the window wiper system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for controlling a window wiper system for a hybrid electric vehicle having an engine comprising:
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determining an operating frequency of the window wiper system; determining an on/off state of the engine; determining if the operating frequency of the window wiper system falls within a predetermined range of operating frequencies if the engine is off; and reducing the operating frequency of the window wiper system if the operating frequency of the window wiper system falls within the predetermined range of operating frequencies thereby reducing at least one of noise, vibration, and harshness associated with the operating frequency of the window wiper system. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method for controlling a window wiper system for a hybrid electric vehicle having an engine comprising:
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determining an on/off state of the window wiper system; determining an operating frequency of the window wiper system if the window wiper system is on; determining an on/off state of the engine; determining if the operating frequency of the window wiper system falls within a predetermined range of operating frequencies if the engine is off; monitoring vehicle speed; determining if the vehicle speed falls within a predetermined speed range; and reducing the operating frequency of the window wiper system if the operating frequency of the window wiper system falls within the predetermined range of operating frequencies and the vehicle speed falls within the predetermined speed range thereby reducing at least one of noise, vibration, and harshness associated with the operating frequency of the window wiper system. - View Dependent Claims (18, 19)
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Specification