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US 2010/0147618 A1Published application
Steering control apparatus
AssigneeNissan Motor Co., Ltd.
InventorsTetsuya OSONOI, Noriki KUBOKAWA, Naotaka CHINO, Takaaki EGUCHI, Koutarou SHIINO, Toshirou YODA
Life of this patent
Estimating the term…
Abstract
A steering control apparatus is provided with first and a second steering mechanisms serving to assist a steering force exerted by a driver via a steering wheel. The first steering mechanism employs a first electric motor to apply a rotational torque to a pinion shaft, and the second steering mechanism uses a hydraulic oil pressure to apply a thrusting force to a rack bar.
Claims14
A steering control apparatus comprising:
- a steering wheel;
- a rack bar operatively connected to a steered wheel to turn the steered wheel;
- a pinion shaft operatively connected to the rack bar to form a rack and pinion mechanism;
- a first steering mechanism including a first electric motor arranged to apply a rotational torque to the pinion shaft for turning the steered wheel;
- a second steering mechanism including a hydraulic power cylinder that applies a thrusting force to the rack bar for turning the steered wheel, and an oil pump fluidly connected to the power cylinder, and a second electric motor that drives the oil pump;
- a detection device operatively connected to the steering wheel such that the detection device detects steering information of the steering wheel;
- and
- a motor control device that controls the first and second electric motors based on a detection signal from the detection device.
5 more elements
A steering control apparatus comprising:
- a steering wheel;
- a rack bar operatively connected to a steered wheel to turn the steered wheel;
- a pinion shaft operatively connected to the rack bar to form a rack and pinion mechanism;
- means for applying a rotational torque to the pinion shaft;
- means for applying a thrusting force to the rack bar using a hydraulic pressure;
- detection means for detecting steering information of the steering wheel;
- and
- control means for controlling the means for applying the rotational torque and the means for applying the thrusting force based on a detection signal from the detection means.
5 more elements
Dependencies are inferred from the claim text.