초록 ▼

A system and method for detecting wheel lift of an automotive vehicle includes a yaw rate sensor (28) that generates a yaw rate signal, a lateral acceleration sensor (32) that generates a lateral acceleration signal, a roll rate sensor (34) generating a roll rate signal, and a longitudinal accelerat

A system and method for detecting wheel lift of an automotive vehicle includes a yaw rate sensor (28) that generates a yaw rate signal, a lateral acceleration sensor (32) that generates a lateral acceleration signal, a roll rate sensor (34) generating a roll rate signal, and a longitudinal acceleration sensor (36) for generating a longitudinal acceleration signal. A controller (18) is coupled to the yaw rate sensor (28), the lateral acceleration sensor (32), the roll rate sensor (34), and the longitudinal acceleration sensor (36). The controller determines a dynamic load transfer acting on the plurality of wheels as a function of yaw rate, lateral acceleration roll rate, and longitudinal acceleration. Normal forces for each of the plurality of wheels is determined as a function of the dynamic load transfer. Wheel lift is indicated when at least one of the normal forces for each of the plurality of wheels is less than a normal force threshold.

대표청구항 ▼

A system and method for detecting wheel lift of an automotive vehicle includes a yaw rate sensor (28) that generates a yaw rate signal, a lateral acceleration sensor (32) that generates a lateral acceleration signal, a roll rate sensor (34) generating a roll rate signal, and a longitudinal accelerat

A system and method for detecting wheel lift of an automotive vehicle includes a yaw rate sensor (28) that generates a yaw rate signal, a lateral acceleration sensor (32) that generates a lateral acceleration signal, a roll rate sensor (34) generating a roll rate signal, and a longitudinal acceleration sensor (36) for generating a longitudinal acceleration signal. A controller (18) is coupled to the yaw rate sensor (28), the lateral acceleration sensor (32), the roll rate sensor (34), and the longitudinal acceleration sensor (36). The controller determines a dynamic load transfer acting on the plurality of wheels as a function of yaw rate, lateral acceleration roll rate, and longitudinal acceleration. Normal forces for each of the plurality of wheels is determined as a function of the dynamic load transfer. Wheel lift is indicated when at least one of the normal forces for each of the plurality of wheels is less than a normal force threshold. , microphones, camera, speaker, and the said cut-off switch. 5. A motor vehicle recorder system as in claim 3, in which the said multiple position mode function control switch includes: a "Signal" function position which controls recording the vehicle speed and location at programmable intervals and at a programmable time prior the activation of the system, wherein activation of the system comprises activation of said recorder, microphones, camera, speaker, and said cut-off switch, and emission of an intermittent beep sound through said speaker. 6. A motor vehicle recorder system as in claim 3, in which the said multiple position mode function control switch includes: a "Compliance" function position which controls recording the vehicle speed and location at programmable intervals and at a programmable time prior to activation of the system, wherein activation of the system comprises activation of said recorder, microphones, camera, speaker, and said cut-off switch, and a broadcast through said speaker from the recorder device of a prerecorded warning message that a recording will be made of the incident. 7. A motor vehicle recorder system as in claim 3, in which said recorder device includes the capability to record the vehicle speed at intermittent time intervals and to record at a programmable time prior to activation of the system, in which said intervals can be programmed by adjusting a designated variable setting of said recorder device. 8. A motor vehicle recorder system as in claim 1, wherein said camera is concealed as a decorative ornament. 9. A motor vehicle recorder system as in claim 1, further comprising a wireless activation switch connected to said recorder device, adapted to enable a user to activate said system remotely. 10. A motor vehicle recorder system which monitors and records the speed and location of a vehicle at programmable intervals and at a programmable time prior to activation of the system, and also records audible and visual information in and around said motor vehicle comprising: a recorder device capable of monitoring and recording the speed and location of the vehicle as well as recording audio and video information, a speed tracking device connected to said recorder device, a GPS device adapted to provide location information connected to said recorder device, two or more microphones connected to said recorder device, at least one camera connected to said recorder device, one or more speaker connected to said recorder device, a multiple position mode function control switch connected to said recorder device, a foot activation control switch connected to said recorder device, a cut-off switch connected to said recorder device adapted to turn off the motor vehicle radio and tape layer and CD player prior to activation of said microphones and camera, a transmitter connected to said recorder device adapted to transmit data relating to said speed, location, audio and video information to a remote receiving device. 11. A motor vehicle recorder system as in claim 10, in which an optional voice activation device is added to the system and is connected to said recorder device which permits a voice activation of the said system. 12. A motor vehicle recorder system as in claim 11, in which said multiple position motor function controls witch includes: the "Off", "Silent", "Signal", and "Compliance" function positions. 13. A motor vehicle recorder system as in claim 12, in which the said multiple position mode function control switch includes: a "Silent" function position which controls the vehicle speed and location at programmable intervals at a programmable time prior to activation of the system, wherein activation of the system includes activation of said recorder, microphones, camera, speaker, and said cut-off switch. 14. A motor vehicle recorder system as in claim 12, in which the said multiple position mode function control switch includes; a "Signal" fu