TECHNIQUE FOR CONTROLLING TRANSITION BETWEEN EV MODE AND HEV MODE IN HYBRID VEHICLE
First Claim
1. A method for controlling transition between an electric vehicle (EV) mode and a hybrid electric vehicle (HEV) mode in a hybrid vehicle, the method comprising:
- determining, by a controller, a drive mode of the hybrid vehicle by continuously monitoring an average vehicle speed and an accelerator position sensor;
determining, by the controller, a first value for entering into the HEV mode and a second value for controlling the transition between the EV mode and the HEV mode based on a battery'"'"'s state-of-charge (SOC), the average vehicle speed, and the drive mode; and
determining, by the controller, whether the hybrid vehicle should be in EV mode or HEV mode based on a driver'"'"'s requisite torque, the driver'"'"' s requisite torque calculated by continuously monitoring the accelerator position sensor and a gear position sensor and based on the determined first value and second value.
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Accused Products
Abstract
Disclosed is a technique for controlling transition between an electric vehicle (EV) mode and a hybrid electric vehicle (HEV) mode in a hybrid vehicle. More specifically, the technique includes first determining a drive mode of the hybrid vehicle by monitoring an average vehicle speed and an accelerator position sensor. Next, an engine on map value is determined for entering into the HEV mode and a hysteresis map value is determined for controlling the transition between the EV mode and the HEV mode based on a battery'"'"'s state-of-charge (SOC), the average vehicle speed, and the drive mode; Based on the above steps, the technique determines whether the hybrid vehicle should transition between the EV mode or the HEV mode based on a driver'"'"'s requisite torque calculated by monitoring the accelerator position sensor and a gear position sensor and on the determined engine on map value and hysteresis map value.
57 Citations
20 Claims
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1. A method for controlling transition between an electric vehicle (EV) mode and a hybrid electric vehicle (HEV) mode in a hybrid vehicle, the method comprising:
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determining, by a controller, a drive mode of the hybrid vehicle by continuously monitoring an average vehicle speed and an accelerator position sensor; determining, by the controller, a first value for entering into the HEV mode and a second value for controlling the transition between the EV mode and the HEV mode based on a battery'"'"'s state-of-charge (SOC), the average vehicle speed, and the drive mode; and determining, by the controller, whether the hybrid vehicle should be in EV mode or HEV mode based on a driver'"'"'s requisite torque, the driver'"'"' s requisite torque calculated by continuously monitoring the accelerator position sensor and a gear position sensor and based on the determined first value and second value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A non-transitory computer readable medium containing program instructions executed by a controller, the computer readable medium comprising:
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program instructions that determine a drive mode of the hybrid vehicle by continuously monitoring an average vehicle speed and an accelerator position sensor; program instructions that determine a first value for entering into the HEV mode and a second value for controlling the transition between the EV mode and the HEV mode based on a battery'"'"'s state-of-charge (SOC), the average vehicle speed, and the drive mode; and program instructions that determine whether the hybrid vehicle should be in EV mode or HEV mode based on a driver'"'"'s requisite torque, the driver'"'"'s requisite torque calculated by continuously monitoring the accelerator position sensor and a gear position sensor and based on the determined first value and second value. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A hybrid vehicle control system comprising:
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an engine and a motor configured to operate in parallel or individually based upon a particular driving mode; and a controller configured to control the driving mode of the hybrid vehicle, the controller configured to; determine the drive mode of the hybrid vehicle by continuously monitoring an average vehicle speed and an accelerator position sensor, determine a first value for entering into a hybrid electric vehicle (HEV) mode and a second value for controlling the transition between an electric vehicle (EV) mode and the HEV mode based on a battery'"'"'s state-of-charge (SOC), the average vehicle speed, and the drive mode, and determine whether the hybrid vehicle should be in EV mode or HEV mode based on a driver'"'"'s requisite torque, the driver'"'"'s requisite torque calculated by continuously monitoring the accelerator position sensor and a gear position sensor and based on the determined first value and second value. - View Dependent Claims (18, 19, 20)
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Specification