Electronic engine control apparatus
First Claim
Patent Images
1. A method of controlling an internal combustion engine for a vehicle comprising the steps as follows:
- detecting a plurality of driving actions made by an operator of the vehicle;
detecting a plurality of operating conditions of the vehicle;
estimating a driver'"'"'s preference for driveability of the vehicle comprising determining occurrence frequencies of the driving actions and operating conditions over a predetermined period; and
,selectively adjusting engine operation in accordance with the estimated driver'"'"'s preference.
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Abstract
An electronic engine control apparatus includes: a plurality of first sensors for detecting the driving action taken in accordance with a driver'"'"'s intent; a plurality of second sensors for detecting the operating conditions of a vehicle and an engine; a plurality of actuators for controlling the engine; a unit for discriminating the driver'"'"'s intent of how to drive the vehicle based on output signals from the first and second sensors; and a unit for controlling the engine to match the driver'"'"'s intent by selectively adjusting at least one of the actuators, in accordance with the discriminated driver'"'"'s intent.
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Citations
59 Claims
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1. A method of controlling an internal combustion engine for a vehicle comprising the steps as follows:
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detecting a plurality of driving actions made by an operator of the vehicle; detecting a plurality of operating conditions of the vehicle; estimating a driver'"'"'s preference for driveability of the vehicle comprising determining occurrence frequencies of the driving actions and operating conditions over a predetermined period; and
,selectively adjusting engine operation in accordance with the estimated driver'"'"'s preference. - View Dependent Claims (2)
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3. An electronic engine control apparatus for selectively adjusting vehicle operation by categorizing the driving action and operating conditions with respect to plural types of a driving environment of a vehicle and/or a driver'"'"'s preference for driveability and by discriminating at least one of the plural types, comprising:
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a plurality of first sensors for detecting the driving action taken by a driver and including means for generating a first output signal value representative thereof; a plurality of second sensors for detecting the operating conditions of the vehicle and an engine and including means for generating a second output signal value representative thereof; discrimination means for classifying the first and second output signal values into a plurality of predetermined ranges, for calculating occurrence frequencies in respective ranges of the output signal values, for calculating a possibility value of the plural types by combining the calculated occurrence frequencies in the respective ranges of the output signal values of said first and second sensors and for determining the one of the plural types which has a largest possibility value among the plural types as a driving environment and/or a driver'"'"'s preference at a present time; and
,control means for controlling the engine by selectively adjusting at least one of a plurality of actuators for controlling the engine in accordance with the determined type. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 41)
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40. An electronic engine control apparatus according 32, wherein said discrimination means comprises:
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a unit for calculating the occurrence frequencies of the respective ranges of each output signal value by applying membership functions of a Fuzzy theory to the output signals of said first and second sensors; a unit for obtaining the possibility value of each driving environment and each driver'"'"'s preference by performing conversion matrix calculation from the occurrence frequencies of the respective ranges of each output signal into the driving environments and the driver'"'"'s preferences; and a unit for discriminating an objective driving environment and an objective driver'"'"'s preference which have maximum possibility values among the driving environments and the driver'"'"'s preferences, respectively.
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42. An electronic engine control apparatus useful for implementing a plurality of types of operation for a vehicle comprising:
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a plurality of first sensors for detecting a driving action taken by a driver; a plurality of second sensors for detecting operating conditions of the vehicle and an engine; discriminating means for classifying output signal values of each of said first and second sensors measured during a predetermined period into a plurality of predetermined ranges comprised of possible output signal values, for calculating occurrence frequencies in respective ones of the ranges of the output signal values of each of said first and second sensors, for converting the calculated occurrence frequencies into driving condition signals, and for discriminating one of the types in accordance with the driving condition signals; and
,control means for controlling the engine by selectively adjusting at least one of a plurality of actuators for controlling the engine in accordance with the discriminated type.
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43. An electronic engine control apparatus useful for implementing a plurality of types of operation for a vehicle comprising:
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a plurality of first sensors for detecting a driving action taken by a driver; a plurality of second sensors for detecting operating conditions of the vehicle and an engine; discriminating means for classifying output signal values of each of said first and second sensors into a plurality of predetermined ranges by supplying the measured values to a membership function utilized in Fuzzy theory, for calculating occurrence frequencies in respective ones of the ranges of the output signal value of each of said first and second sensors, for converting the calculated occurrence frequencies into driving condition signals, and for discriminating one of the types in accordance with the driving condition signals; and
,control means for controlling the engine by selectively adjusting at least one of a plurality of actuators for controlling the engine in accordance with the discriminated type.
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44. An electronic engine control apparatus useful for implementing a plurality of types of operation for a vehicle comprising:
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a plurality of first sensors for detecting a driving action taken by a driver; a plurality of second sensors for detecting operating conditions of the vehicle and an engine; discriminating means for classifying output signal values of each of said first and second sensors measured during a predetermined period into a plurality of ranges by supplying the measured values to a membership function utilized in Fuzzy theory, for calculating occurrence frequencies in respective ranges of the output signal value of each of said first and second sensors, for converting the calculated occurrence frequencies into driving condition signals, and for discriminating one of the types in accordance with the driving condition signals; and
,control means for controlling the engine by selectively adjusting at least one of a plurality of actuators for controlling the engine in accordance with the discriminated type.
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45. An electronic engine control apparatus useful for implementing a plurality of types of operation for a vehicle comprising:
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a plurality of first sensors including a gear shift sensor, a brake pedal sensor, an accelerator pedal sensor, and a steering sensor for detecting a driving action taken by a driver; a plurality of second sensors for detecting operating conditions of the vehicle and an engine; discriminating means for classifying output signal values of each of said first and second sensors including the gear shift sensor, the brake pedal sensor, the accelerator pedal sensor, and the steering sensor, into a plurality of ranges by supplying the measured values to a membership function utilized in Fuzzy theory, for calculating occurrence frequencies in respective ranges of the output signal value of each of said first and second sensors, for converting the calculated occurrence frequencies into driving condition signals, and for discriminating one of the types in accordance with the driving condition signals; and
,control means for controlling the engine by selectively adjusting at least one of a plurality of actuators for controlling the engine in accordance with the discriminated type.
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46. An electronic engine control apparatus useful for implementing a plurality of types of operation for a vehicle comprising:
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a plurality of first sensors for detecting a driving action taken by a driver; a plurality of second sensors for detecting operating conditions of the vehicle and an engine; discriminating means for classifying output signal values of each of said first and second sensors measured during a predetermined period into a plurality of ranges, for calculating occurrence frequencies in respective ranges of the output signal value of each of said first and second sensors, for converting the calculated occurrence frequencies into driving condition signals, and for discriminating one of the types representing an intent of the driver, in accordance with the driving condition signals; and
,control means for controlling the engine by selectively adjusting at least one of a plurality of actuators of controlling the engine in accordance with the discriminated type.
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47. A method of controlling an internal combustion engine for a vehicle comprising the following steps:
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detecting a plurality of driving actions made by an operator of the vehicle; detecting a plurality of operating conditions of the vehicle; estimating a driving condition of the vehicle comprising determining occurrence frequencies of the driving actions and operating conditions over a predetermined period; and
,selectively adjusting engine operation in accordance with the estimated driving condition. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
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58. A condition adaptive-type control method for an internal combustion engine mounted on an automotive vehicle having a transmission mechanism, a brake pedal and an accelerator pedal, comprising the steps of:
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categorizing a driver'"'"'s preference and a vehicle driving environment, respectively, into a plurality of categories, and preparing different engine control methods for different combinations of said categories; detecting a plurality of measurable variables including driving actions made by an operator of the vehicle comprising a state of engagement or disengagement of said transmission mechanism, an angle of said brake pedal and an angle of said accelerator pedal, and vehicle operating conditions comprising a speed of the vehicle; determining possibility values for the categories to estimate a one present time driver'"'"'s preference and a one present time driving environment, each having maximum possibility values, respectively, comprising processing occurrence frequencies of the measurable variables in a Fuzzy theory analysis relative to the categories to determine the possibility values, and associating the possibility values to identify the maximum possibility values; and
,selecting one of said engine control methods in accordance with a combination of said categories corresponding to the one present time driver'"'"'s preference and the one present time driving environment.
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59. A method of controlling an internal combustion engine for an automotive vehicle comprising the following steps:
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detecting a plurality of driving actions made by an operator of the vehicle; detecting a plurality of operating conditions of the vehicle; categorizing the driving actions and operating conditions with respect to plural types of the driving environment of the vehicle and/or a driver'"'"'s preference for driveability; estimating a present time one of the plural types by determining occurrence frequencies of the driving actions and the operating conditions over a predetermined period relative to preselected ranges representative of the plural types and by calculating a maximum possibility value of the present time one using the occurrence frequencies; and
,selectively adjusting engine operation in accordance with the estimated present time one of the plural types.
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Specification