# US 2014/0207334 A1 · Vehicle control system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0207334 A1 - Document ID: US20140207334A1 - Status: Published application - Kind: A1 - Application number: 13/575,977 - Filed: 2011-07-20 - Published: 2014-07-24 - Earliest claimed: 2011-07-20 - Assignees: Toyota Jidosha Kabushiki Kaisha - Inventors: Shin Noumura; Kaiji Itabashi; Toshio Tanahashi; Keisuke Takeuchi; Yoshimitsu Agata; Tomohide Kawasaki - Web page: https://patentgrep.com/patent/US20140207334A1 ## CPC - B60W 50/082: {Selecting or switching between different modes of propelling} - B60W 10/00: Conjoint control of vehicle sub-units of different type or different function (for propulsion of purely electrically-propelled vehicles with power supplied within the vehicle B60L50/00 - B60L58/00) - B60W 10/04: including control of propulsion units - B60W 10/11: Stepped gearings - B60W 10/20: including control of steering systems - B60W 10/22: including control of suspension systems - B60W 40/09: Driving style or behaviour - B60W 40/10: related to vehicle motion - F16H 59/48: Inputs being a function of acceleration - F16H 61/10: Controlling shift hysteresis - B60W 2050/0022: {Gains, weighting coefficients or weighting functions} - B60W 2520/105: Longitudinal acceleration - B60W 2520/125: Lateral acceleration - B60W 2540/10: Accelerator pedal position - F16H 2059/003: {Detecting or using driving style of a driver, e.g. for adapting shift schedules} - B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT - F16H: GEARING ## Abstract A vehicle control system configured to judge a vehicle behavior or a driving preference of a driver based on acceleration of the vehicle including at least longitudinal acceleration. An acceleration value used in the judgment is obtained on the basis of a weighted detection value of the actual longitudinal acceleration of the vehicle, and a weighted parameter which is varied by an operation to increase a driving force of the vehicle executed by the driver. A weight on the parameter is reduced in case a weight on the detection value of the longitudinal acceleration is increased, and the weight on the parameter is increased in case the weight on the detection value of the longitudinal acceleration is reduced. ## Claims ### Claim 1 A vehicle control system, which is configured to judge a vehicle behavior or a driving preference of a driver based on acceleration of the vehicle including at least longitudinal acceleration, charactcrizcd in that wherein: an acceleration value used to judge the vehicle behavior or the driving preference is obtained on the basis of a weighted detection value of the actual longitudinal acceleration of the vehicle, and a weighted parameter which is varied by an operation to increase a driving force of the vehicle executed by the driver; and a weight on the parameter is reduced in case a weight on the detection value of the longitudinal acceleration is increased, and the weight on the parameter is increased in case the weight on the detection value of the longitudinal acceleration is reduced. ### Claim 2 A vehicle control system, which is configured to control at least any one of characteristics of a speed change, a driving force, a steering and a suspension, on the basis of a detection value of longitudinal acceleration of a vehicle, and a parameter which is varied by an operation to increase the driving force of the vehicle executed by a driver, wherein: the detection value and the parameter are weighted individually; and a weight on the parameter is reduced in case a weight on the detection value of the longitudinal acceleration is increased, and the weight on the parameter is increased in case the weight on the detection value of the longitudinal acceleration is reduced. ### Claim 3 (depends on 1) The vehicle control system as claimed in claim 1, wherein: the weight on the detection value of the longitudinal acceleration is increased under the situation in which the longitudinal acceleration is easy to be established; and the weight on the parameter is increased under the situation in which the longitudinal acceleration is difficult to be established. ### Claim 4 (depends on 3) The vehicle control system as claimed in claim 3, wherein: the situation in which the longitudinal acceleration is easy to be established includes a situation in which the vehicle is running at a low speed; the situation in which the longitudinal acceleration is difficult to be established includes a situation in which the vehicle is running at a high speed; the weight on the parameter is reduced and the weight on the detection value of the longitudinal acceleration is increased in case the vehicle is running at a low speed; and the weight on the parameter is increased and the weight on the detection value of the longitudinal acceleration is reduced in case the vehicle is running at a high speed. ### Claim 5 (depends on 1) The vehicle control system as claimed in claim 1, wherein the parameter includes at least any one of: (i) an opening rate of an accelerator; (ii) a ratio of the detection value of the longitudinal acceleration to a maximum longitudinal acceleration possible to be established at a moment when the longitudinal acceleration is detected; and (iii) a ratio of the longitudinal acceleration calculated on the basis of the opening degree of the accelerator to the maximum longitudinal acceleration possible to be established at a moment when the longitudinal acceleration is calculated. ### Claim 6 (depends on 1) The vehicle control system as claimed in claim 1, wherein the parameter is normalized within a tire friction circle of the vehicle. ### Claim 7 (depends on 2) The vehicle control system as claimed in claim 2, wherein: the weight on the detection value of the longitudinal acceleration is increased under the situation in which the longitudinal acceleration is easy to be established; and the weight on the parameter is increased under the situation in which the longitudinal acceleration is difficult to be established. ### Claim 8 (depends on 2) The vehicle control system as claimed in claim 2, wherein the parameter includes at least any one of: (i) an opening rate of an accelerator; (ii) a ratio of the detection value of the longitudinal acceleration to a maximum longitudinal acceleration possible to be established at a moment when the longitudinal acceleration is detected; and (iii) a ratio of the longitudinal acceleration calculated on the basis of the opening degree of the accelerator to the maximum longitudinal acceleration possible to be established at a moment when the longitudinal acceleration is calculated. ### Claim 9 (depends on 3) The vehicle control system as claimed in claim 3, wherein the parameter includes at least any one of: (i) an opening rate of an accelerator; (ii) a ratio of the detection value of the longitudinal acceleration to a maximum longitudinal acceleration possible to be established at a moment when the longitudinal acceleration is detected; and (iii) a ratio of the longitudinal acceleration calculated on the basis of the opening degree of the accelerator to the maximum longitudinal acceleration possible to be established at a moment when the longitudinal acceleration is calculated. ### Claim 10 (depends on 4) The vehicle control system as claimed in claim 4, wherein the parameter includes at least any one of: (i) an opening rate of an accelerator; (ii) a ratio of the detection value of the longitudinal acceleration to a maximum longitudinal acceleration possible to be established at a moment when the longitudinal acceleration is detected; and (iii) a ratio of the longitudinal acceleration calculated on the basis of the opening degree of the accelerator to the maximum longitudinal acceleration possible to be established at a moment when the longitudinal acceleration is calculated. ### Claim 11 (depends on 7) The vehicle control system as claimed in claim 7, wherein the parameter includes at least any one of: (i) an opening rate of an accelerator; (ii) a ratio of the detection value of the longitudinal acceleration to a maximum longitudinal acceleration possible to be established at a moment when the longitudinal acceleration is detected; and (iii) a ratio of the longitudinal acceleration calculated on the basis of the opening degree of the accelerator to the maximum longitudinal acceleration possible to be established at a moment when the longitudinal acceleration is calculated. ### Claim 12 (depends on 2) The vehicle control system as claimed in claim 2, wherein the parameter is normalized within a tire friction circle of the vehicle. ### Claim 13 (depends on 3) The vehicle control system as claimed in claim 3, wherein the parameter is normalized within a tire friction circle of the vehicle. ### Claim 14 (depends on 4) The vehicle control system as claimed in claim 4, wherein the parameter is normalized within a tire friction circle of the vehicle. ### Claim 15 (depends on 5) The vehicle control system as claimed in claim 5, wherein the parameter is normalized within a tire friction circle of the vehicle. ### Claim 16 (depends on 7) The vehicle control system as claimed in claim 7, wherein the parameter is normalized within a tire friction circle of the vehicle. ### Claim 17 (depends on 8) The vehicle control system as claimed in claim 8, wherein the parameter is normalized within a tire friction circle of the vehicle. ### Claim 18 (depends on 9) The vehicle control system as claimed in claim 9, wherein the parameter is normalized within a tire friction circle of the vehicle. ### Claim 19 (depends on 10) The vehicle control system as claimed in claim 10, wherein the parameter is normalized within a tire friction circle of the vehicle. ### Claim 20 (depends on 11) The vehicle control system as claimed in claim 11, wherein the parameter is normalized within a tire friction circle of the vehicle.