Land vehicles – Suspension modification enacted during travel – Suspension stiffness for ride comfort
Patent
1997-08-28
1999-03-23
English, Peter C.
Land vehicles
Suspension modification enacted during travel
Suspension stiffness for ride comfort
1882661, 701 37, B60G 1708, B60G 17015
Patent
active
058849211
ABSTRACT:
An electric control apparatus for a damper device in a suspension system of an automotive vehicle, wherein absolute velocity of a sprung mass of the vehicle and relative velocity of the sprung mass to an unsprung mass of the vehicle in vertical movement are detected to determine a target damping coefficient in a predetermined small value when the detected absolute velocity is different from the detected relative velocity in a movement direction and to increase the target damping coefficient in accordance with an increase of a ratio of the detected absolute velocity to the detected relative velocity when the detected absolute velocity coincides with the detected relative velocity in the movement direction, and wherein a magnitude of vertical vibration of the sprung mass is detected to correct the target damping coefficient to a predetermined small value when the detected magnitude of vertical vibration of the sprung mass is less than a predetermined value and to increase the maximum value of the target damping coefficient in accordance with an increase of the detected magnitude of vertical vibration of the sprung mass more than the predetermined value.
REFERENCES:
patent: 5322320 (1994-06-01), Sahashi et al.
patent: 5324069 (1994-06-01), Ogawa
patent: 5430646 (1995-07-01), Kimura et al.
patent: 5697634 (1997-12-01), Kamimae et al.
patent: 5701245 (1997-12-01), Ogawa et al.
English Peter C.
Toyota Jidosha & Kabushiki Kaisha
LandOfFree
Electric control apparatus for damper device in suspension syste does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electric control apparatus for damper device in suspension syste, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric control apparatus for damper device in suspension syste will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2118865