A steering system is configured such that electric power is supplied to a steering actuator and a turning actuator from a first power supply when a power state of a vehicle is an on state and supply of the electric power from the first power supply is cut off when the power state is an off state. The steering system includes a rotation curbing unit configured to operate such that rotation of the steering wheel is curbed in at least a part of a first power-off period from when the power state becomes an off state until when the power state becomes the on state next, as an operating period, and a second power supply configured to supply, to the rotation curbing unit, the electric power required for operation of the rotation curbing unit in the operating period, the second power supply being different from the first power supply.

A steering shaft is rotatably provided inside an outer column and an inner column. A key lock collar is mounted on an outer peripheral surface of the steering shaft, the outer peripheral surface facing the outer column. The key lock collar includes a key lock collar body and a cylindrical portion. Multiple concave parts and convex parts extending in the axial direction are provided on an outer peripheral part of the key lock collar body along the circumferential direction. A lock key is engaged with the concave parts from adjacent to the outer column, and thus the rotation of the steering shaft with respect to the outer column is restricted. An outer diameter of the cylindrical portion is smaller than an outer diameter of the convex parts and larger than an outer diameter of the concave parts.

A steering shaft is rotatably provided inside an outer column and an inner column. A key lock collar is mounted on an outer peripheral surface of the steering shaft, the outer peripheral surface facing the outer column. The key lock collar includes a key lock collar body and a cylindrical portion. Multiple concave parts and convex parts extending in the axial direction are provided on an outer peripheral part of the key lock collar body along the circumferential direction. A lock key is engaged with the concave parts from adjacent to the outer column, and thus the rotation of the steering shaft with respect to the outer column is restricted. An outer diameter of the cylindrical portion is smaller than an outer diameter of the convex parts and larger than an outer diameter of the concave parts.

The vehicle control system comprises: a first ECU comprising a processor for receiving first information that indicates whether a vehicle is moving and, based on the first information, generating a first control signal to control locking of a steering; and a second ECU comprising a processor for receiving second information that indicates whether the vehicle is moving and, based on the second information, generating a second control signal to control the locking of the steering, wherein the second ECU outputs a signal to lock the steering based on the first control signal and the second control signal.

The vehicle control system comprises: a first ECU comprising a processor for receiving first information that indicates whether a vehicle is moving and, based on the first information, generating a first control signal to control locking of a steering; and a second ECU comprising a processor for receiving second information that indicates whether the vehicle is moving and, based on the second information, generating a second control signal to control the locking of the steering, wherein the second ECU outputs a signal to lock the steering based on the first control signal and the second control signal.

A locking mechanism for a motor is provided. The locking mechanism includes a detent mounted on a shaft coupled to the motor, and a solenoid including an electromagnetic coil, a plunger, and a spring that holds the plunger at an extended state. The plunger engages the detent at the extended state when no voltage is applied, and the spring is configured to exert a predetermined force for the plunger to engage the detent to lock the shaft. The plunger retracts away from the detent to allow rotation of the motor shaft when a voltage is applied to the solenoid.

A steering lock device includes a camshaft including a shaft portion having an axis, a lock actuation cam that radially projects from a first position of the shaft portion in an axial direction, and a projection that radially projects from a second position of the shaft portion in the axial direction; a housing rotatably accommodating the camshaft; and a lock bar moved by the lock actuation cam in a locking direction or an unlocking direction when the camshaft is rotated about the axis when a key cylinder is operated by a mechanical key. When the lock bar locks the steering shaft, the camshaft is configured so that the projection is separated from the shaft portion if a load exceeding a predetermined strength acts on the projection of the camshaft. The predetermined strength rotates the lock actuation cam to disengage the lock bar from the steering shaft.

A steering lock device includes a camshaft including a shaft portion having an axis, a lock actuation cam that radially projects from a first position of the shaft portion in an axial direction, and a projection that radially projects from a second position of the shaft portion in the axial direction; a housing rotatably accommodating the camshaft; and a lock bar moved by the lock actuation cam in a locking direction or an unlocking direction when the camshaft is rotated about the axis when a key cylinder is operated by a mechanical key. When the lock bar locks the steering shaft, the camshaft is configured so that the projection is separated from the shaft portion if a load exceeding a predetermined strength acts on the projection of the camshaft. The predetermined strength rotates the lock actuation cam to disengage the lock bar from the steering shaft.

The invention relates to a lock for an anti-theft device for a motor vehicle steering column comprising a rotor (5), a stator head (4), a lug (13) and a complementary profile (14), one supported by the rotor (5) and the other by the stator head (4), the complementary profile (14) being shaped such that the engagement of same with the lug (13) blocks the rotation of the rotor (5) in a predetermined direction of rotation (AR) from a predetermined angular position (PIA) and allows the rotation of the rotor (5) by pushing the rotor (5) in beforehand. The complementary profile (14) is also shaped so that the engagement of the complementary profile (14) and the lug (13) guides the assembly of the rotor (5) in the stator head (4) according to a push-rotated assembly in which the rotor (5) is axially retained in the stator head (4).

A steering column lock comprises a bearing-mounted, free-rotating keyhole cover that covers an underlying locking device. When installed on the steering column of a vehicle, the steering column lock prevents a would-be car thief from grabbing the lock with pliers or another tool and using the lock to turn the steering column and thus drive the vehicle, because rotation of the free-rotating outer cover does not cause rotation of the other portions of the lock.