Patent CA1198501A successfully refreshed from Google Patents.
CA1198501A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Method and apparatus for controlling electronically controlled transmissions
Assignee: Isuzu Motors Ltd
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Filing: 1983-10-28
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Granted: 1985-12-24
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Expires: 2003-10-28
Abstract
Abstract ABSTRACT OF THE DISCLOSURE An electronically controlled vehicle tranmission is controlled for a gear shifting operation by determining an optimum transmission gear based on shift map data stored in an electronic control device in response to a detected vehicle speed and a detected degree of depression of an accelerator pedal. When the accelerator pedal is abruptly depressed whihe the vehicle is running, such an abrupt depression is detected by a pedal speed detector which produces a signal to cause the electronic control device to interrupt the gear shifting operation. The electronic control device starts the gear shifting operation again after the accelarator pedal depression is stabilized.
Inventors
- 👤 Toshihiro Hattori
- 👤 Masaki Ishihara
- 👤 Makoto Uriuhara
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-28 20:08
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/02; F16H61/0202; F16H61/0204; F16H61/0213; F16H61/26; F16H61/28; F16H61/2807; F16H59/00; F16H59/14; F16H59/18; F16H2059/183; F16H61/30; F16H2061/307; F16H59/141; F16H61/68; F16H61/682; Y; Y02; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
99 words
A method of controlling an electronically controlled transmission of a vehicle, the transmission having an actuator controlled by an electronic control device dependent on driving conditions of the vehicle for changing gear ratios, said method comprising the steps of: (a) monitoring the speed of movement of an accelerator pedal; (b) detecting when said speed of movement of the accelerator pedal exceeds a predetermined value; (c) locking a gear changing operation when said speed of movement of the accelerator pedal exceeds said predetermined value; and (d) effecting the gear shifting operation after said accelerator pedal has completed the movement thereof.
Claim 2
Independent Claim
99 words
A method of controlling an electronically controlled transmission of a vehicle, the transmission having an actuator controlled by an electronic control device dependent on driving conditions of the vehicle for changing gear ratios, said method comprising the steps of: (a) monitoring the speed of movement of an accelerator pedal; (b) detecting when said speed of movement of the accelerator pedal exceeds a predetermined value; (c) locking a gear changing operation when said speed of movement of the accelerator pedal exceeds said predetermined value; and (d) effecting the gear shifting operation after said accelerator pedal has completed the movement thereof.
Claim 3
Dependent Claim
14 words
A method according to claim 1, wherein said transmission comprises a parallel-shaft gear transmis-sion.
Claim 4
Independent Claim
107 words
An apparatus for controlling an electronically controlled transmission of a vehicle, comprising: (a) a transmission actuator for changing gear ratios in the transmission; (b) an electronic control device for controlling operation of said transmission actuator; (c) an accelerator pedal; (d) means for detecting the speed of movement of said accelerator pedal; (e) means for generating a signal when said speed of movement of the accelerator pedal exceeds a predetermined value; and (f) means for temporarily locking the operation of said transmission actuator controlled by said electronic control device in response to said signal produced when said speed of movement of the accelerator pedal exceeds said predetermined value.
Claim 5
Independent Claim
107 words
An apparatus for controlling an electronically controlled transmission of a vehicle, comprising: (a) a transmission actuator for changing gear ratios in the transmission; (b) an electronic control device for controlling operation of said transmission actuator; (c) an accelerator pedal; (d) means for detecting the speed of movement of said accelerator pedal; (e) means for generating a signal when said speed of movement of the accelerator pedal exceeds a predetermined value; and (f) means for temporarily locking the operation of said transmission actuator controlled by said electronic control device in response to said signal produced when said speed of movement of the accelerator pedal exceeds said predetermined value.
Claim 6
Dependent Claim
14 words
An apparatus according to claim 3, wherein said transmission comprises a parallel-shaft gear transmis-sion.
Claim 7
Dependent Claim
17 words
An apparatus according to claim 3, wherein said generating means comprises a differentiating circuit and a comparator.
Claim 8
Dependent Claim
13 words
An apparatus according to claim 5, wherein said comparator comprises a window comprator.
Claim 9
Independent Claim
138 words
An apparatus for controlling an electronically controlled transmission of a vehicle, comprising: (a) a transmission having an internal lever for changing gear ratios therein; (b) a shift actuator for moving said internal lever in a shift direction; (c) a select actuator for moving said internal lever in a select direction; (d) an electronic control device for controlling operation of said shift and select actuators; (c) an accelerator pedal; (d) means for detecting the speed of movement of said accelerator pedal; (e) means for generating a signal when said speed of movement of the accelerator pedal exceeds a predetermined value; and (f) means for temporarily locking the operation of said shift and select actuators controlled by said electronic control device in response to said signal produced when said speed of movement of the accelerator pedal exceeds said predetermined value.
Claim 10
Independent Claim
138 words
An apparatus for controlling an electronically controlled transmission of a vehicle, comprising: (a) a transmission having an internal lever for changing gear ratios therein; (b) a shift actuator for moving said internal lever in a shift direction; (c) a select actuator for moving said internal lever in a select direction; (d) an electronic control device for controlling operation of said shift and select actuators; (c) an accelerator pedal; (d) means for detecting the speed of movement of said accelerator pedal; (e) means for generating a signal when said speed of movement of the accelerator pedal exceeds a predetermined value; and (f) means for temporarily locking the operation of said shift and select actuators controlled by said electronic control device in response to said signal produced when said speed of movement of the accelerator pedal exceeds said predetermined value.
Claim 11
Dependent Claim
14 words
An apparatus according to claim 7, wherein said transmission comprises a parallel-shaft gear transmis-sion.
Claim 12
Dependent Claim
17 words
An apparatus according to claim 7, wherein said generating means comprises a differentiating circuit and a comparator.
Claim 13
Dependent Claim
13 words
An apparatus according to claim 9, wherein said comparator comprises a window comprator.
References Cited (Backward Citations)
No citation records indexed.
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