Shift control system of hybrid vehicle with automatic transmission and method thereof
First Claim
1. A shift control system of a hybrid vehicle with an automatic transmission, comprising:
- a fuzzy function calculator that receives an accel position sensor (APS) signal that is an input variable, and outputs a severity value by determining a driver'"'"'s driving severity value through a plurality of fuzzy rules including a fuzzy function for the APS signal;
a sporty degree calculator that is electrically connected with the fuzzy function calculator and determines a sporty degree corresponding to the severity value; and
a mode determiner that is electrically connected with the sporty degree calculator and determines whether an engine operates in accordance with the sporty degree;
wherein the sporty degree calculator includes a configuration that divides the severity values for the fuzzy rules by severity values for eco-, medium, and sporty traveling states, and determines the sporty degree by using a center of an area obtained by summing up the areas for the minimum values in the severity values for eco-, medium and sporty traveling states; and
wherein the mode determiner includes a configuration that starts the engine in advance to facilitate acceleration of the engine, if acceleration is required, when the sporty degree is above a first reference value and the vehicle speed is above a reference vehicle speed.
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Accused Products
Abstract
A shift control system of a hybrid vehicle with an automatic transmission may include a fuzzy function calculator that receives an accel position sensor (APS) signal that may be an input variable, and outputs a severity value by determining a driver'"'"'s driving severity value through a plurality of fuzzy rules including a fuzzy function for the APS signal, a sporty degree calculator that may be electrically connected with the fuzzy function calculator and determines a sporty degree corresponding to the severity value, and a mode determiner that may be electrically connected with the sporty degree calculator and determines whether an engine operates in accordance with the sporty degree.
10 Citations
12 Claims
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1. A shift control system of a hybrid vehicle with an automatic transmission, comprising:
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a fuzzy function calculator that receives an accel position sensor (APS) signal that is an input variable, and outputs a severity value by determining a driver'"'"'s driving severity value through a plurality of fuzzy rules including a fuzzy function for the APS signal; a sporty degree calculator that is electrically connected with the fuzzy function calculator and determines a sporty degree corresponding to the severity value; and a mode determiner that is electrically connected with the sporty degree calculator and determines whether an engine operates in accordance with the sporty degree; wherein the sporty degree calculator includes a configuration that divides the severity values for the fuzzy rules by severity values for eco-, medium, and sporty traveling states, and determines the sporty degree by using a center of an area obtained by summing up the areas for the minimum values in the severity values for eco-, medium and sporty traveling states; and wherein the mode determiner includes a configuration that starts the engine in advance to facilitate acceleration of the engine, if acceleration is required, when the sporty degree is above a first reference value and the vehicle speed is above a reference vehicle speed. - View Dependent Claims (2, 3, 4, 5)
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6. A control method of a shift control system of a hybrid vehicle, comprising,
determining a sporty degree by finding a driver'"'"'s driving severity value on the basis of a plurality of fuzzy rules for accel position sensor (APS) signals that are detected input variables by using a sporty degree calculator; -
ascertaining whether the determined sporty degree is larger than a first reference value by using a mode determiner; ascertaining whether a vehicle speed is higher than a reference vehicle speed by using the mode determiner, when the sporty degree is larger than the first reference value; and starting an engine in advance to facilitate acceleration of the engine by using the mode determiner, if acceleration is required, when the vehicle speed is higher than the reference vehicle speed. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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Specification