EP0284001A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method of controlling a constant-speed running controller and constant-speed running controller so controlled
Assignee: Aisin Corp
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Filing: 1988-03-21
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Granted: —
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Expires: 2008-03-21
Abstract
Abstract A constant-speed running controller for maintaining the running speed of a vehicle at a fixed level by regulating the degree of opening of the throttle valve of the vehicle. The constant-speed running controller comprises speed detectors (SP1, SP2) for detecting the running speed of the vehicle, a shift position detecting switch (SPS) for detecting the shift position of the shift lever, a mode selecting switch (MS) for switching the running mode of the vehicle between an automatic speed change control mode and an automatic speed change constant-speed running control mode, a throttle opening degree detector (SS) for detecting the degree of opening of the throttle valve, a brake switch (BS) for detecting the application of the brake system, a target running speed setting switch (SP), a resume switch (RS) for restarting the previously established constant-speed running control mode, a constant-speecd running mode selecting switch for selecting the constant-speed running control function, a microcomputer for processing data received from the foregoing switches and detectors and giving control signals to the functional devices for regulating the running speed of the vehicle. An effective target running speed for constant-speed running is determined on the basis of a temporary target running speed, an average running speed obtained by processing sample running speeds sampled in a predetermined time interval, and the difference between the temporary target running speed and the average running speed.
Inventors
- 👤 Shoji Kawata
- 👤 Osamu Miyake
- 👤 Nobuyasu Suzumura
- 👤 Motohide Takeuchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 12:33
CPC Classifications
B; B60; B60K; B60K31/00; B60K31/06; B60K31/10; B60K31/102; B60K31/105; B60K31/107
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
115 words
A constant-speed running controller comprising: an acceleration means for accelerating a vehicle; a running speed detecting means for detecting a vehicle speed; and a control means connected to said acceleration means and said running speed detecting means for setting and storing a predetermined speed as an effective target running speed and calculating a running speed deviation being a difference between said predetermined speed and a vehicle speed detected by said running speed detecting means and controlling said acceleration means with said running speed deviation; wherein said control means changes a value of said effective target running speed in accordance with a value of said running speed deviation when said vehicle runs on a flat road.
Claim 2
Dependent Claim
115 words
A constant-speed running controller comprising: an acceleration means for accelerating a vehicle; a running speed detecting means for detecting a vehicle speed; and a control means connected to said acceleration means and said running speed detecting means for setting and storing a predetermined speed as an effective target running speed and calculating a running speed deviation being a difference between said predetermined speed and a vehicle speed detected by said running speed detecting means and controlling said acceleration means with said running speed deviation; wherein said control means changes a value of said effective target running speed in accordance with a value of said running speed deviation when said vehicle runs on a flat road.
Claim 3
Dependent Claim
31 words
A constant-speed running controller according to claim 1, wherein said control means includes a gradient road measuring means for measuring a gradient road with a value of said running speed deviation.
Claim 4
Dependent Claim
111 words
A constant-speed running controller comprising: an acceleration means for accelerating a vehicle; a running speed detecting means for detecting a vehicle speed; a control means connected to said acceleration means and said running speed detecting means for setting and storing a predetermined speed and controlling said acceleration means with a running speed deviation being a difference between said predetermined speed and a vehicle speed detected by said running speed detecting means; and an overdrive control means connected to said control means for controlling overdrive prohibition and restoration and enabling the overdrive restoration when said running speed deviation is a predetermined value or less by a predetermined number of times or more.
Claim 5
Dependent Claim
111 words
A constant-speed running controller comprising: an acceleration means for accelerating a vehicle; a running speed detecting means for detecting a vehicle speed; a control means connected to said acceleration means and said running speed detecting means for setting and storing a predetermined speed and controlling said acceleration means with a running speed deviation being a difference between said predetermined speed and a vehicle speed detected by said running speed detecting means; and an overdrive control means connected to said control means for controlling overdrive prohibition and restoration and enabling the overdrive restoration when said running speed deviation is a predetermined value or less by a predetermined number of times or more.
Claim 6
Dependent Claim
62 words
A constant-speed running controller comprising: a running speed detecting means for detecting a vehicle speed; an overdrive control means for controlling overdrive prohibition and restoration; and an estimate means connected to said running speed detecting means and said overdrive control means for sampling vehicle speeds after said overdrive prohibition and setting a moment of said overdrive restoration with said sampled running speeds.
Claim 7
Dependent Claim
62 words
A constant-speed running controller comprising: a running speed detecting means for detecting a vehicle speed; an overdrive control means for controlling overdrive prohibition and restoration; and an estimate means connected to said running speed detecting means and said overdrive control means for sampling vehicle speeds after said overdrive prohibition and setting a moment of said overdrive restoration with said sampled running speeds.
Claim 8
Dependent Claim
122 words
A constant-speed running controller comprising: an acceleration means for accelerating a vehicle; a running speed detecting means for detecting a vehicle speed; an overdrive control means for controlling overdrive prohibition and restoration; and a control means connected to said acceleration means, said running speed detecting means and said overdrive control means for setting and storing a predetermined speed as an effective target running speed and calculating a running speed deviation being a difference between said predetermined speed and a running speed detected by said running speed detecting means and integrating said running speed deviation by a changing integral time in said overdrive prohibition and said overdrive restoration and controlling said acceleration means in accordance with a value of an integrated running speed.
Claim 9
Dependent Claim
122 words
A constant-speed running controller comprising: an acceleration means for accelerating a vehicle; a running speed detecting means for detecting a vehicle speed; an overdrive control means for controlling overdrive prohibition and restoration; and a control means connected to said acceleration means, said running speed detecting means and said overdrive control means for setting and storing a predetermined speed as an effective target running speed and calculating a running speed deviation being a difference between said predetermined speed and a running speed detected by said running speed detecting means and integrating said running speed deviation by a changing integral time in said overdrive prohibition and said overdrive restoration and controlling said acceleration means in accordance with a value of an integrated running speed.
Claim 10
Dependent Claim
107 words
A constant-speed running controller which controls the throttle valve opening degree of a vehicle to maintain a constant running speed, characterized in determining an effective target running speed for constant-speed running control on the basis of a temporary target running speed corresponding to a running speed sampled and stored in a memory at a moment when a target running speed setting switch is operated, an average running speed obtained by processing a plurality of sample running speeds sampled in a predetermined time interval after the target running speed setting switch has been operated, and the difference between the temporary target running speed and the average running speed.
Claim 11
Dependent Claim
107 words
A constant-speed running controller which controls the throttle valve opening degree of a vehicle to maintain a constant running speed, characterized in determining an effective target running speed for constant-speed running control on the basis of a temporary target running speed corresponding to a running speed sampled and stored in a memory at a moment when a target running speed setting switch is operated, an average running speed obtained by processing a plurality of sample running speeds sampled in a predetermined time interval after the target running speed setting switch has been operated, and the difference between the temporary target running speed and the average running speed.
Claim 12
Dependent Claim
40 words
A constant-speed running controller according to claim 6, wherein the difference between the temporary target running speed and the average running speed is weighted optionally and added to data determined through a plurality of previous control cycles by learning function.
Claim 13
Dependent Claim
33 words
A constant-speed running controller according to claim 7, wherein the difference between the temporary target running speed and the average running speed is deleted when the difference is greater than a predetermined threshold.
Claim 14
Dependent Claim
64 words
A constant-speed running controller according to any one of claims 1 through 8, wherein the average running speed is obtained by dividing the sum of a plurality of sample running speeds sampled through a plurality of running speed sampling cycles in a predetermined time interval after the target running speed setting switch has been operated by the number of the running speed sampling cycles.
References Cited (Backward Citations)
No citation records indexed.
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