초록 ▼

A pedal system to realize an intended vehicle output in response to pedal depression is provided. The pedal system provides hysteresis in the relationship between the pedal effort and the vehicle output, taking into account a pedal effort in a depressing motion or in a releasing motion, employing a

A pedal system to realize an intended vehicle output in response to pedal depression is provided. The pedal system provides hysteresis in the relationship between the pedal effort and the vehicle output, taking into account a pedal effort in a depressing motion or in a releasing motion, employing a relationship including a straight line or a folded line. A vehicle output command may be delivered by changing the vehicle output relative to the pedal effort depending on the vehicle speed. An appropriate vehicle output command may be delivered by providing a maintaining motion in addition to the depressing motion and the releasing motion with a different pedal effort and vehicle output command relationship, and by changing the sensitivity of the vehicle output command relative to the pedal effort in the maintaining motion depending on the pedal effort-increasing/decreasing direction, vehicle information, and the vehicle output command or the pedal effort.

대표청구항 ▼

1. A pedal system for a vehicle, comprising a pedal and a pedal effort-detecting means for detecting a pedal effort applied to said pedal, said pedal system delivering a vehicle output command to at least one of a braking output device for generating a braking force for the vehicle and a driving out

1. A pedal system for a vehicle, comprising a pedal and a pedal effort-detecting means for detecting a pedal effort applied to said pedal, said pedal system delivering a vehicle output command to at least one of a braking output device for generating a braking force for the vehicle and a driving output device for generating a driving force for the vehicle based on the pedal effort detected by said pedal effort-detecting means, wherein said pedal system further includes a motional state-judging means for detecting a motional state of either a depressing motion, releasing motion or a maintaining motion, based on the pedal effort detected by said pedal effort-detecting means, andat least a portion of the relationship between the pedal effort and the vehicle output command in the depressing motion or the releasing motion is represented by a straight line (linear) or a folded line. 2. A pedal system according to claim 1, wherein the vehicle output command in the maintaining motion is kept constant, irrespective of the pedal effort. 3. A pedal system according to claim 1, wherein the vehicle output command in the maintaining motion has a sensitivity relative to the pedal effort. 4. A pedal system according to claim 1, wherein the vehicle output command is kept constant up to the middle of the maintaining motion, irrespective of the pedal effort, and has a sensitivity relative to the pedal effort from the middle of the maintaining motion. 5. A pedal system for a vehicle according to claim 3, wherein when the pedal effort is increased in the maintaining motion (depressing and maintaining motion), or when the pedal effort is decreased in the maintaining motion (releasing and maintaining motion), the sensitivity of the vehicle output command is changed, and when the depressing direction is changed in the middle of the maintaining motion, the sensitivity of the vehicle output command relative to the pedal effort depending on the depressing direction before being changed is maintained. 6. A pedal system for a vehicle according to claim 3, wherein when the motion is changed from the depressing motion to the maintaining motion and when the motion is changed from the releasing motion to the maintaining motion, the sensitivity of the vehicle output command relative to the pedal effort in the maintaining motion is changed. 7. A pedal system for a vehicle according to claim 3, wherein the sensitivity of the vehicle output command relative to the pedal effort in the maintaining motion is varied depending on the vehicle output command. 8. A pedal system for a vehicle according to claim 3, wherein the sensitivity of the vehicle output command relative to the pedal effort in the maintaining motion is varied depending on the pedal effort. 9. A pedal system for a vehicle according to claim 3, wherein the sensitivity of the vehicle output command relative to the pedal effort in the maintaining motion is varied depending on the vehicle speed. 10. A pedal system for a vehicle according to claim 1, wherein the sensitivity of the vehicle output command relative to the pedal effort in the depressing motion or in the releasing motion is varied depending on the vehicle speed. 11. A pedal system for a vehicle according to claim 1, wherein said pedal is not stroked at all, or little stroked. 12. A pedal system for a vehicle according to claim 1, wherein said pedal is an accelerator pedal or a brake pedal. 13. A vehicle system comprising a pedal, a pedal effort-detecting means for detecting a pedal effort applied to said pedal, and at least one of a braking output device for generating a braking force for the vehicle and a driving output device for generating a driving force for the vehicle for delivering a vehicle output, said vehicle system delivering a vehicle output or a vehicle output command based on the pedal effort detected by said pedal effort-detecting means, wherein said vehicle system further includes a motional state-judging means for detecting a motional state of either a depressing motion, releasing motion or a maintaining motion, based on the pedal effort detected by said pedal effort-detecting means, andat least a portion of the relationship between the pedal effort in the depressing motion or the releasing motion and the vehicle output or the vehicle output command is represented by a straight line (linear) or a folded line. 14. A vehicle system according to claim 13, wherein the vehicle output or the vehicle output command in the maintaining motion is kept constant, irrespective of the pedal effort. 15. A vehicle system according to claim 13, wherein the vehicle output or the vehicle output command in the maintaining motion has a sensitivity relative to the pedal effort. 16. A vehicle system according to claim 13, wherein the vehicle output or the vehicle output command is kept constant up to the middle of the maintaining motion, irrespective of the pedal effort, and has a sensitivity relative to the pedal effort from the middle of the maintaining motion. 17. A vehicle system for a vehicle according to claim 15, wherein when the pedal effort is increased in the maintaining motion (depressing and maintaining motion), or when the pedal effort is decreased in the maintaining motion (releasing and maintaining motion), the sensitivity of the vehicle output or the vehicle output command relative to the pedal effort is changed, and when the depressing direction is changed in the middle of the maintaining motion, the sensitivity of the vehicle output command relative to the pedal effort depending on the depressing direction before being changed is maintained. 18. A vehicle system according to claim 15, wherein when the motion is changed from the depressing motion to the maintaining motion and when the motion is changed from the releasing motion to the maintaining motion, the sensitivity of the vehicle output or the vehicle output command relative to the pedal effort in the maintaining motion is changed. 19. A vehicle system according to claim 15, wherein the sensitivity of the vehicle output or the vehicle output command relative to the pedal effort in the maintaining motion is varied depending on the vehicle output or the vehicle output command. 20. A vehicle system according to claim 15, wherein the sensitivity of the vehicle output or the vehicle output command relative to the pedal effort in the maintaining motion is varied depending on the pedal effort. 21. A vehicle system according to claim 15, wherein the sensitivity of the vehicle output or the vehicle output command relative to the pedal effort in the maintaining motion is varied depending on the vehicle speed. 22. A vehicle system according to claim 13, wherein the sensitivity of the vehicle output or the vehicle output command relative to the pedal effort in the depressing motion or in the releasing motion is varied depending on the vehicle speed. 23. A vehicle system according to claim 13, wherein said pedal is not stroked at all, or little stroked. 24. A vehicle system according to claim 13, wherein said pedal is an accelerator pedal or a brake pedal.