Control system and method for vehicle speed-response type intermittent wiper
AssigneeMitsubishi Jidosha Kogyo Kabushiki Kaisha
InventorsNaoki Kawashima, Yoshihiro Murase, Eri Nishikawa, Tamotsu Kurachi
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Abstract
This invention relates to a control system and method for a vehicle speed-response type intermittent wiper. An operation time interval for the wiper, which serves to wipe a window of a vehicle, is set in accordance with a speed of the vehicle to drive the wiper at the operation time interval. Upon detection of a start of the vehicle from a stopped state, the wiper is driven in temporary precedence of the wiper operation time interval so that driving of the wiper can be adequately controlled to ensure the provision of a sufficient area of vision without driving the wiper beyond necessity.
Claims11
A control system for a vehicle speed-response type intermittent wiper, comprising:
- wiper drive means for driving said wiper for wiping a window of a vehicle;
- vehicle speed detection means for detecting a vehicle speed;
- intermittent wiper operation time setting means for setting an intermittent time interval of operation of said wiper in accordance with the vehicle speed detected by said vehicle speed detection means;
- first control means for outputting a control signal to said wiper drive means, said first control means controlling said wiper drive means to drive said wiper at the wiper operation time interval set by said intermittent wiper operation time setting means;
- vehicle start detection means for detecting that said vehicle has started running from a stopped state;
- and
- second control means for outputting a control signal to said wiper drive means, said second control means controlling said wiper drive means to drive said wiper in temporary precedence of the control of said wiper drive means by said first control means upon detection of a start of said vehicle by said vehicle start detection means under the control by said first control means.
A control method for a vehicle speed-response type intermittent wiper, comprising:
- setting an operation time interval for said wiper, which serves to wipe a window of a vehicle, in accordance with a speed of said vehicle to drive said wiper at the operation time interval;
- detecting a start of said vehicle from a stopped state;
- and
- driving said wiper in temporary precedence of the operation time interval when the start of said vehicle from the stopped state is detected.
A control system for a vehicle speed-response type intermittent wiper, comprising:
- wiper drive means for driving said wiper for wiping a window of a vehicle;
- vehicle speed detection means for detecting a vehicle speed;
- intermittent wiper operation time setting means for setting an intermittent time interval of operation of said wiper in accordance with the vehicle speed detected by said vehicle speed detection means;
- first control means for outputting a control signal to said wiper drive means, said first control means controlling said wiper drive means to drive said wiper at the wiper operation time interval set by said intermittent wiper operation time setting means;
- vehicle start detection means for detecting that said vehicle has started running from a stopped state based on vehicle speed detected at two different time points, respectively, by said vehicle speed detection means;
- and
- second control means for outputting a control signal to said wiper drive means, said second control means controlling said wiper drive means to drive said wiper in temporary precedence of the control of said wiper drive means by said first control means upon detection of a start of said vehicle by said vehicle start detection means under the control by said first control means.
A control method for a vehicle speed-response type intermittent wiper, comprising:
- setting an operation time for said wiper, which serves to wipe a window of a vehicle, in accordance with a speed of said vehicle to drive said wiper at the operation time interval;
- detecting a start of said vehicle from a stopped state based on information on speeds of said vehicle at two different time points;
- and
- driving said wiper in temporary precedence of the operation time interval when the start of said vehicle from the stopped state is detected.
Dependencies are inferred from the claim text.