Control device for controlling selection of gear ratio in secondary transmission
First Claim
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1. A control device for controlling selection of a gear ratio in a secondary transmission in which a driver manually actuates a clutch, comprising:
- (a) drive means for performing selection of the gear ratio in the secondary transmission;
(b) a clutch sensor which detects a disconnected situation of the clutch and produces a detect signal indicative thereof; and
(c) control means for preventing misoperation of the clutch by the driver by controlling the drive means in response to the detect signal detected by the clutch sensor and selecting the gear ratio only when the clutch is in the disconnected situation for preventing the secondary transmission from being damaged due to a driver'"'"'s misoperation of the clutch.
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Abstract
A disconnected situation of a clutch is detected by a clutch sensor and an actuator performing selection of gear ratio in a secondary transmission is controlled by a control circuit in response to detected signals of the clutch sensor, whereby the selection of the gear ratio is conducted only when the clutch is put in its disconnected situation.
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Citations
28 Claims
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1. A control device for controlling selection of a gear ratio in a secondary transmission in which a driver manually actuates a clutch, comprising:
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(a) drive means for performing selection of the gear ratio in the secondary transmission; (b) a clutch sensor which detects a disconnected situation of the clutch and produces a detect signal indicative thereof; and (c) control means for preventing misoperation of the clutch by the driver by controlling the drive means in response to the detect signal detected by the clutch sensor and selecting the gear ratio only when the clutch is in the disconnected situation for preventing the secondary transmission from being damaged due to a driver'"'"'s misoperation of the clutch. - View Dependent Claims (2, 3, 5, 6, 7, 8, 27, 28)
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4. A control device as set forth in claim, wherein the clutch sensor comprises a first switch which is switched on when the clutch is subjected to its disconnection.
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9. A control device controlling selection of gear ratio in a secondary transmission which includes a clutch, comprising:
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(a) drive means for performing selection of the gear ratio in the secondary transmission; (b) a clutch sensor detecting a disconnected situation of the clutch; (c) control means for controlling the drive means in response to a detect signal detected by the clutch sensor to select the gear ratio only when the clutch is placed in its disconnected situation, whereby the secondary transmission is prevented from being injured due to a driver'"'"'s misoperation; (d) detect means for detecting completion of the selection of the gear ratio in the secondary transmission; and (e) a signal sound generator continuing to generate signal sound in response to a detect signal detected by the detect means until the selection of the gear ratio is accomplished. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A control device controlling selection of gear ratio in a secondary transmission including a clutch, comprising:
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(a) drive means for performing selection of the gear ratio in the secondary transmission; (b) a clutch sensor detecting a disconnected situation of the clutch and comprising a first switch switched on when the clutch is subjected to its disconnection; (c) control means for controlling the drive means in response to a detect signal detected by the clutch sensor to select the gear ratio only when the clutch is placed in its disconnected situation, whereby the secondary transmission is prevented from being injured due to a driver'"'"'s misoperation; (d) detect means for detecting completion of the selection of the gear ratio in the secondary transmission and including a second switch which is closed when the selection of the gear ratio to a first situation is accomplished and a third switch which is closed when the selection of the gear ratio to a second situation is accomplished; (e) a signal sound generator continuing to generate signal sound in response to a detect signal detected by the detect means until the selection of the gear ratio is accomplished; and (f) a first indicating lamp connected to one end of the second switch and lighted when the second switch is closed, and a second indicating lamp connected to one end of the third switch and lighted when the third switch is closed. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification