Control system for automotive vehicle for controlling vehicle driving behavior with feature of harmonization of vehicular driving condition dependent control and driver's driving tendency adapted control

• US 5,162,997 A
• Filed: 01/22/1991
• Issued: 11/10/1992
• Est. Priority Date: 01/23/1990
• Status: Expired due to Term

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Takahashi, Hiroshi
• Primary Examiner(s): Black, Thomas G.
• Application Number:
  US07/643,582
• Time in Patent Office: 658 Days
• Field of Search: 364/424.01, 364/424.05, 364/424.1, 74/866, 395/905, 395/24
• US Class Current: 701/1
• CPC Class Codes: B60G 17/0195 characterised by the regulation being combined with other vehicle control systems conjoint control of vehicle sub-units including control of suspension systems B60W10/22
• CPC Class Codes: B60G 2600/90 other signal treatment means
• CPC Class Codes: B60W 40/09 Driving style or behaviour
• CPC Class Codes: B62D 6/00 Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits means for initiating a change in direction B62D1/00; steering valves B62D5/06; combined with means for inclining the vehicle body or wheels on bends B62D9/00
• CPC Class Codes: F16H 2059/003 Detecting or using driving style of a driver, e.g. for adapting shift schedules
• CPC Class Codes: F16H 2059/084 Economy mode
• CPC Class Codes: F16H 2059/086 Adaptive mode, e.g. learning from the driver
• CPC Class Codes: F16H 2061/0084 Neural networks
• CPC Class Codes: F16H 59/08 Range selector apparatus
• CPC Class Codes: F16H 61/0213 characterised by the method for generating shift signals
• CPC Class Codes: Y10S 706/905 Vehicle or aerospace

Abstract

A control system for controlling automotive vehicle driving behavior has a parameter monitoring means for monitoring vehicular driving parameters, a vehicular driving environmental condition predicting means which predicts vehicular driving environmental condition based on generalized intelligence base which is common to all vehicles, a control output generating means for deriving a control output on the basis of the predicted vehicular driving environmental condition, a personal driving characteristics detecting means for detecting unique characteristics of each individual driver, a control output recollecting means which learns relationship between said vehicular driving parameters and the personal driving characteristics for recollecting control output on the basis of said vehicular driving parameters, and a control output selecting means which selects one of control outputs from said control generating means and said control output recollecting means in such that when recollected control output present, the recollected control output is selected and, otherwise the control output derived by the control output generating means is selected.

Claims

1. A control system for an automotive vehicle for controlling vehicular component, comprising:

first means for monitoring preselected control parameters for producing a control parameter indicative signals;

second means for deriving a first control signal on the basis of said parameter indicative signals according to a preset common control schedule which defines operating modes of said vehicular component in relation to operating condition represented by said control parameter;

third means for accepting manual entry of command for selecting operational mode of said vehicular component and learning operating conditions at entry of said manually entered command as a personal unique date reflecting driver'"'"'s preference;

fourth means for detecting said control parameter indicative signals representing operational condition coincidence with learnt condition for recollecting manually commanded operational mode and for producing a second control signal; and

fifth means for selectively supplying one of said first and second control signals to said vehicular component for controlling operation thereof, said control signal supplying means outputting said first control signal while absence of said second control signal and outputs said second control signal while said second control signal present.

2. A control system for an automotive vehicle as set forth in claim 1, wherein said third means includes neural network for learning operational condition of said vehicular component at the occurrence of manually entered command for updating neural network storage.

3. A control system for an automotive vehicle for controlling vehicular component, comprising:

first means for monitoring preselected vehicle driving parameters for producing a vehicle driving parameter indicative signals;

second means for deriving a first control signal on the basis of said parameter indicative signals according to a preset common control schedule which defines operating modes of said vehicular component in relation to vehicular driving condition represented by said control parameter;

third means for accepting manual entry of command for selecting operational mode of said vehicular component and learning vehicular driving conditions at entry of said manually entered command as a personal unique data reflecting driver'"'"'s preference;

fourth means for detecting said control parameter indicative signals representing vehicular driving condition coincidence with learnt condition for recollecting manually commanded operational mode and for producing a second control signal; and

fifth means for selectively supplying one of said first and second control signals to said vehicular component for controlling operation thereof, said control signal supplying means outputting said first control signal while absence of said second control signal and outputs said second control signal while said second control signal present.

4. A control system for an automotive vehicle as set forth in claim 3, wherein said third means includes neural network for learning vehicular driving condition at the occurrence of manually entered command for updating neural network storage.

5. A control system for an automotive vehicle as set forth in claim 4, wherein said fourth means is responsive to said vehicle driving parameter indicative signal for predicting a vehicle driving condition and recollects one of manually entered command when the predicted vehicle driving condition coincidence with the corresponding learnt driving condition for deriving said second control signal based on the recollected command.

6. A shift control system for an automotive automatic power transmission comprising:

an automatic power transmission unit having electrically operably shift control means for selectingly estabilishing one of a plurality of transmission speed ratio;

a sensor means for monitoring vehicle driving parameter associated with transmission speed ratio selection for producing a vehicle driving condition indicatvie parameter signal;

a shift pattern storage means storing a plurality of preset shift patterns which are set in terms of the vehicle driving parameter;

a manual selector means for manual entry of a pattern selector command for manually selecting one of a plurality of shift patterns in said shift pattern storage means;

a neural network responsive to said manually entered pattern selector command for learning condition of said vehicle driving conditions based on said vehicle driving condition indicative parameter signal and updating storage therein;

a controller means for detecting vehicle driving condition based on the vehicle driving condition indicative parameter signal, comparing the detected vehicle driving condition with learnt vehicle driving conditions, recollecting one of commands stored in said neural network when the detected vehicle driving condition coincidence with the learnt vehicle driving condition, and otherwise selecting one of a plurality of shift pattern according to a predetermined shift pattern selecting schedule, and performing shift control by controlling operation of said shift control means according to the selected shift pattern.

7. A shift control system as set forth in claim 6, wherein said controller means predicts vehicle driving condition including vehicle driving environmental condition based on said vehicle driving condition indicative parameter signal and perfoms recollection of one of the stored commands and selection of shift pattern based on the predicted vehicle driving condition.

8. A control system for an automotive vehicle as set forth in claim 7, wherein said controller means generates a first control signal based on the shift pattern selected according to the predetermined shift pattern selecting schedule and a second control signal based on the shift pattern corresponding to the recollected command, and selects said second control signal whenever the recollected command is present and otherwise selects said first control signal.