Vehicle behavior estimating device and vehicle behavior controlling device
First Claim
Patent Images
1. A vehicle behavior estimating device comprising:
- driving torque detecting means that detects a driving torque outputted to a driving shaft from driving force providing means that provides a vehicle with a driving force;
road-surface transmitting torque detecting means that detects a road-surface transmitting torque transmitted to a road surface by driving wheels of the vehicle that are driven based on the driving torque transmitted from the driving shaft; and
comparing means that compares the detected driving torque and the detected road-surface transmitting torque.
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Accused Products
Abstract
While a driving torque TD outputted to a driving shaft via an AT from an engine is detected, a road-surface transmitting torque Td_tire is detected based on rotation speeds Vwdr, Vwdl of vehicle driving wheels, a vehicle body speed Vd, and driving torques Tdr, Tdl, all of which are previously detected. The driving torque TD and the road-surface transmitting torque Td_tire are then compared to each other. When TD>Td_tire, the driving torque from an engine is controlled so as to decrease a value of (TD−Td_tire). The vibrations of individual vehicle parts are thereby decreased.
11 Citations
17 Claims
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1. A vehicle behavior estimating device comprising:
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driving torque detecting means that detects a driving torque outputted to a driving shaft from driving force providing means that provides a vehicle with a driving force;
road-surface transmitting torque detecting means that detects a road-surface transmitting torque transmitted to a road surface by driving wheels of the vehicle that are driven based on the driving torque transmitted from the driving shaft; and
comparing means that compares the detected driving torque and the detected road-surface transmitting torque. - View Dependent Claims (2, 3, 4)
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5. A vehicle behavior controlling device comprising:
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driving torque detecting means that detects a driving torque outputted to a driving shaft from driving force providing means that provides a vehicle with a driving force;
road-surface transmitting torque detecting means that detects a road-surface transmitting torque transmitted to a road surface by driving wheels of the vehicle that are driven based on the driving torque transmitted from the driving shaft;
comparing means that compares the detected driving torque and the detected road-surface transmitting torque; and
driving torque adjusting means that adjusts the driving torque outputted to the driving shaft from the driving force providing means so that an absolute value of a difference between the detected driving torque and the detected road-surface transmitting torque becomes small. - View Dependent Claims (6, 7, 8)
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9. A vehicle behavior controlling device comprising:
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driving torque detecting means that detects a driving torque outputted to a driving shaft from driving force providing means that provides a vehicle with a driving force;
road-surface transmitting torque detecting means that detects a road-surface transmitting torque transmitted to a road surface by driving wheels of the vehicle that are driven based on the driving torque transmitted from the driving shaft; and
driving torque adjusting means that adjusts the driving torque outputted to the driving shaft from the driving force providing means so that an absolute value of a difference between the detected driving torque and the detected road-surface transmitting torque becomes small. - View Dependent Claims (10, 11)
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12. A method used in a vehicle behavior estimating device, the method comprising steps of:
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detecting a driving torque outputted to a driving shaft from driving force providing means that provides a vehicle with a driving force;
detecting a road-surface transmitting torque transmitted to a road surface by driving wheels of the vehicle that are driven based on the driving torque transmitted from the driving shaft; and
comparing the detected driving torque and the detected road-surface transmitting torque.
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13. A method used in a vehicle behavior controlling device, the method comprising steps of:
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detecting a driving torque outputted to a driving shaft from driving force providing means that provides a vehicle with a driving force;
detecting a road-surface transmitting torque transmitted to a road surface by driving wheels of the vehicle that are driven based on the driving torque transmitted from the driving shaft;
comparing the detected driving torque and the detected road-surface transmitting torque; and
adjusting the driving torque outputted to the driving shaft from the driving force providing means so that an absolute value of a difference between the detected driving torque and the detected road-surface transmitting torque becomes small.
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14. A method used in a vehicle behavior controlling device, the method comprising steps of:
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detecting a driving torque outputted to a driving shaft from driving force providing means that provides a vehicle with a driving force;
detecting a road-surface transmitting torque transmitted to a road surface by driving wheels of the vehicle that are driven based on the driving torque transmitted from the driving shaft; and
adjusting the driving torque outputted to the driving shaft from the driving force providing means so that an absolute value of a difference between the detected driving torque and the detected road-surface transmitting torque becomes small.
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15. A computer program product in a computer readable medium for use in a data processing system for estimating a vehicle behavior, the computer program product comprising instructions for:
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detecting a driving torque outputted to a driving shaft from driving force providing means that provides a vehicle with a driving force;
detecting a road-surface transmitting torque transmitted to a road surface by driving wheels of the vehicle that are driven based on the driving torque transmitted from the driving shaft; and
comparing the detected driving torque and the detected road-surface transmitting torque.
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16. A computer program product in a computer readable medium for use in a data processing system for controlling a vehicle behavior, the computer program product comprising instructions for:
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detecting a driving torque outputted to a driving shaft from driving force providing means that provides a vehicle with a driving force;
detecting a road-surface transmitting torque transmitted to a road surface by driving wheels of the vehicle that are driven based on the driving torque transmitted from the driving shaft;
comparing the detected driving torque and the detected road-surface transmitting torque; and
adjusting the driving torque outputted to the driving shaft from the driving force providing means so that an absolute value of a difference between the detected driving torque and the detected road-surface transmitting torque becomes small.
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17. A computer program product in a computer readable medium for use in a data processing system for controlling a vehicle behavior, the computer program product comprising instructions for:
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detecting a driving torque outputted to a driving shaft from driving force providing means that provides a vehicle with a driving force;
detecting a road-surface transmitting torque transmitted to a road surface by driving wheels of the vehicle that are driven based on the driving torque transmitted from the driving shaft; and
adjusting the driving torque outputted to the driving shaft from the driving force providing means so that an absolute value of a difference between the detected driving torque and the detected road-surface transmitting torque becomes small.
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Specification