Process for undercarriage regulation
First Claim
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1. An undercarriage regulation apparatus for a vehicle having a vehicle body, comprising:
- at least one of a first sensor means for sensing at least one velocity of the vehicle body in a vertical direction to produce a first signal indicative thereof and a second sensor means for sensing at least one relative displacement between the vehicle body and at least one axle of the vehicle to produce a second signal indicative thereof;
third sensor means for sensing at least one of a vehicle longitudinal velocity, vehicle longitudinal acceleration, vehicle transverse acceleration, yawing velocity and steering angle and outputting a third signal indicative thereof;
a converting circuit for receiving said third signal and outputting at least one regulation parameter signal; and
a regulator for receiving said regulation parameter signal and at least one of said first signal and said second signal, said regulator exhibiting one of at least two transfer functions dependent on said regulation parameter signal, said regulator including means for outputting a control signal to at least one actuator of the undercarriage for attuning undercarriage characteristics;
wherein in noncritical travelling states, said regulation parameter signal is adjusted to provide a comfort-oriented attuning of said undercarriage characteristics, and in critical travelling states, said regulation parameter signal is adjusted utilizing one of a continuous and stepped transition to provide a safety-oriented attuning of said undercarriage characteristics.
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Abstract
The invention relates to a process for the undercarriage regulation of vehicles, especially of passenger and utility motor vehicles, in which the undercarraige properties are varied in dependence on the particular sensor-determined traveling state by the regulating system. For an adaptation of the undercarriage tuning to the various requirements in respect to traveling comfort and traveling safety it is provided that the regulator parameters (R) of the regulating circuit are automatically varied in dependence on the dynamics of the traveling process.
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Citations
11 Claims
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1. An undercarriage regulation apparatus for a vehicle having a vehicle body, comprising:
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at least one of a first sensor means for sensing at least one velocity of the vehicle body in a vertical direction to produce a first signal indicative thereof and a second sensor means for sensing at least one relative displacement between the vehicle body and at least one axle of the vehicle to produce a second signal indicative thereof; third sensor means for sensing at least one of a vehicle longitudinal velocity, vehicle longitudinal acceleration, vehicle transverse acceleration, yawing velocity and steering angle and outputting a third signal indicative thereof; a converting circuit for receiving said third signal and outputting at least one regulation parameter signal; and a regulator for receiving said regulation parameter signal and at least one of said first signal and said second signal, said regulator exhibiting one of at least two transfer functions dependent on said regulation parameter signal, said regulator including means for outputting a control signal to at least one actuator of the undercarriage for attuning undercarriage characteristics; wherein in noncritical travelling states, said regulation parameter signal is adjusted to provide a comfort-oriented attuning of said undercarriage characteristics, and in critical travelling states, said regulation parameter signal is adjusted utilizing one of a continuous and stepped transition to provide a safety-oriented attuning of said undercarriage characteristics. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An undercarriage regulation apparatus for a vehicle having a vehicle body, comprising:
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first sensor means for sensing a relative displacement between the vehicle body and a suspension member to produce a first signal indicative thereof; second sensor means for sensing at least one of a vehicle longitudinal velocity, vehicle longitudinal acceleration, vehicle transverse acceleration, yawing velocity and steering angle, and outputting a second signal indicative thereof; and a regulator for receiving said first signal and said second signal, said regulator exhibiting one of at least two transfer functions dependent on said second signal, said regulator including means for outputting a control signal based upon said first and second signals to at least one actuator of the undercarriage for attuning undercarriage characteristics, wherein in noncritical travelling states, said regulation parameter signal is adjusted to provide a comfort-oriented attuning of said undercarriage characteristics, and in critical travelling states, said regulation parameter signal is adjusted utilizing one of a continuous and stepped transition to provide a safety-oriented attuning of said undercarriage characteristics.
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11. An apparatus for regulating an undercarriage of a vehicle, the undercarriage including at least one actuator and regulable in a travel-comfort mode and a travel-safety mode, the vehicle including a body and at least one axle, said apparatus comprising:
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at least one of a first sensor and a second sensor, said first sensor sensing at least one velocity of the vehicle body in a vertical direction and providing a first output signal corresponding thereto, said second sensor sensing at least one relative displacement between the vehicle body and an axle and providing a second output signal corresponding thereto; a third sensor sensing at least one of a vehicle longitudinal velocity, vehicle longitudinal acceleration, vehicle transverse acceleration, yawing velocity and steering angle and providing a third output signal corresponding thereto; a converting circuit for receiving said third output signal and providing an output signal representing a control parameter, wherein in noncritical travelling states, said control parameter is adjusted to provide a comfort-oriented attuning of said undercarriage characteristics, and in critical travelling states, said control parameter is adjusted utilizing one of a continuous and stepped transition to provide a safety-oriented attuning of said undercarriage characteristics in critical travel states; and a regulator for receiving said converter circuit output signal and at least one of said first and second output signals, said regulator having one of at least two transfer functions dependent on said converter circuit output signal and providing an output signal to said at least one actuator.
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Specification