US 7,063,636 B2 · Mechanically linked active steering system

Abstract

An active steering system with variable assist includes a differential actuator having an input gear and an output gear. The differential actuator has a default kinematic relationship between the input gear and the output gear such that magnitude of an output speed and an output torque is approximately equal to a magnitude of an input speed and an input torque with opposing directions. The system also includes an input device that is in operable communication with the differential actuator and an output device that is in operable communication with the differential actuator. The differential actuator is operable to vary a ratio between the input device and the output device. The system also includes a steering mechanism that is in operable communication with the differential actuator and the steering mechanism is configured to reverse the opposing directions to the output device.

Claims23

Dependent claims

An active steering system with variable assist, said system comprising:

a differential actuator has an input gear and an output gear, and a default kinematic relationship between said input gear and said output gear is such that a magnitude of an output speed and an output torque is approximately equal to a magnitude of an input speed and an input torque with opposing directions;
an input device is in operable communication with said differential actuator;
an output device is in operable communication with said differential actuator, said differential actuator is operable to vary a ratio between said input device and said output device;
and
a steering mechanism is in operable communication with said differential actuator, said steering mechanism is configured to reverse said opposing directions to said output device.

2 more elements

Dependencies are inferred from the claim text.

Mechanically linked active steering system

Life of this patent

Mechanically linked active steering system

Life of this patent

Abstract

Claims23