Enhanced road characterization for adaptive mode drive
First Claim
1. A control system of a vehicle, comprising:
- an adaptive drive controller programmed to control a continuously controlled damping and spring subsystem according to an operational mode;
a plurality of sensors configured to sense road surface conditions associated with a road surface on which the vehicle travels; and
at least one controller programmed to alter the operational mode based on a discretization of the road surface conditions into more than two discrete values.
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicle selectively operates in a plurality of operational modes. The operational modes carry with them different commands for operating a controlled suspension system such as a continuously controlled damping suspension system, a controlled steering system such as an electronic power-assist steering system, and a powertrain of the vehicle. For example, in one operational mode, the powertrain might be more sensitive to output torque from a motor or engine quickly with little hesitation. The vehicle includes a sensing system, such as a plurality of suspension height sensors and a corresponding controller programmed to receive suspension height signals indicating the characteristic of the road, to categorize the signals, and to compute categorized vehicle characteristics such as vehicle pitch, heave, roll, yaw, etc. The controller can discretize the categorized signals into a discrete number of index values, and then command the vehicle to change operational mode based on the discrete index value.
-
Citations
18 Claims
-
1. A control system of a vehicle, comprising:
-
an adaptive drive controller programmed to control a continuously controlled damping and spring subsystem according to an operational mode; a plurality of sensors configured to sense road surface conditions associated with a road surface on which the vehicle travels; and at least one controller programmed to alter the operational mode based on a discretization of the road surface conditions into more than two discrete values. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A control system of a vehicle, comprising:
-
an electronic power-steering controller programmed to control an electronic power-steering subsystem according to an operational mode; a plurality of sensors configured to sense road surface conditions associated with a road surface on which the vehicle travels; and at least one controller programmed to alter the operational mode based on a discretization of the road surface conditions into more than two discrete values. - View Dependent Claims (9, 10, 11, 12)
-
-
13. A vehicle comprising:
-
a powertrain controller programmed to operate in a plurality of modes and to provide a powertrain with operational instructions that vary according to which one of the modes the powertrain controller is operating in; a plurality of sensors configured to sense road surface conditions associated with a road surface on which the vehicle travels; and at least one controller programmed to alter the one of the modes the powertrain controller is operating in based on a discretization of the sensed road surface conditions into more than two discrete values. - View Dependent Claims (14, 15, 16, 17, 18)
-
Specification