Vehicle steering electronic control sensor apparatus, power supply apparatus, and steering apparatus for vehicle

Patent metadata

Field	Value
Publication number	US-11332185-B2
Application number	US-201816175836-A
Country	US
Kind code	B2
Filing date	Oct 31, 2018
Priority date	Nov 3, 2017
Publication date	May 17, 2022
Grant date	May 17, 2022

Abstract

An apparatus for controlling a motor included in a vehicle may comprise a main regulator configured to supply a source voltage, a plurality of sub-regulators connected to the main regulator, each of the sub-regulators configured to convert the source voltage to a respective sub-voltage, a passive component connected to the main regulator, and a plurality of sensors comprising first sensors and a second sensor, each of the first sensors connected to a corresponding sub-regulator of the sub-regulators, the second sensor connected to the main regulator through the passive component.

First claim

What is claimed is:

1. A steering apparatus for controlling a steering motor, the apparatus comprising at least one steering control module, wherein the at least one steering control module comprises:
a power converter configured to convert an input voltage into a first voltage;
a plurality of sub-power converters configured to convert the first voltage into a plurality of sub-voltages;
a plurality of motor position sensors receiving the sub-voltages and generating signals associated with a motor position, each of the motor position sensors receiving at least one corresponding sub-voltage of the sub-voltages; and
a controller configured to calculate assist steering force of a steering motor based on the signals associated with the motor position and configured to control the steering motor based on the assist steering force,
wherein:
the at least one steering control module includes a first steering control module and a second steering control module,
the first steering control module comprises a plurality of first motor position sensors and the second steering control module comprises a plurality of second motor position sensors,
when the first steering control module and the second steering control module are in a normal state, the first steering control module calculates assist steering force based on first motor position sensor signals of the first motor position sensors and controls the steering motor based on the assist steering force calculated based on the first motor position sensor signals, and
when the first motor position sensors enter an abnormal state, the second steering control module calculates assist steering force based on second motor position sensor signals of the second motor position sensors and controls the steering motor based on the assist steering force calculated based on the second motor position sensor signals.

2. The steering apparatus of claim 1 , wherein the sub-power converters include: a first sub-power converter configured to convert the first voltage into a first sub-voltage; and a second sub-power converter configured to convert the first voltage into a second sub-voltage, and
wherein the motor position sensors include: a first motor position sensor configured to receive the first sub-voltage to measure a position of the steering motor and to generate a first motor position sensor signal; and a second motor position sensor configured to receive the second sub-voltage to measure the position of the steering motor and to generate a second motor position sensor signal.

3. The steering apparatus of claim 2 , wherein the sub-power converters further include a third power converter configured to convert the first voltage into a third sub-voltage, and
the motor position sensors further include a third motor position sensor configured to receive the third sub-voltage to measure the position of the steering motor and to generate a third motor position sensor signal.

4. The steering apparatus of claim 1 , wherein the controller performs validity verification on the motor position sensor signals received from the motor position sensors and control the assist steering force according to the performed validity verification.

5. The steering apparatus of claim 1 , wherein the steering motor includes a single winding steering motor.

6. The steering apparatus of claim 1 , further including a steering column module connected to a steering wheel and a steering rack module connected to a vehicle wheel, and
wherein the steering column module and the steering rack module are electrically connected with each other.

7. A steering apparatus for controlling a steering motor, the apparatus comprising at least one steering control module, wherein the at least one steering control module comprises:
a power converter configured to convert an input voltage into a first voltage;
a plurality of sub-power converters configured to convert the first voltage into a plurality of sub-voltages;
a plurality of motor position sensors receiving the sub-voltages and generating signals associated with a motor position, each of the motor position sensors receiving at least one corresponding sub-voltage of the sub-voltages; and
a controller configured to calculate assist steering force of a steering motor based on the signals associated with the motor position and configured to control the steering motor based on the assist steering force,
wherein:
the at least one steering control module includes a first steering control module and a second steering control module,
the first steering control module comprises a plurality of first motor position sensors and the second steering control module comprises a plurality of second motor position sensors,
when the first steering control module and the second steering control module are in a normal state, the first steering control module calculates assist steering force based on first motor position sensor signals of the first motor position sensors, the second steering control module calculates assist steering force based on second motor position sensor signals of the second motor position sensors, and the first and second steering control modules control the steering motor based on the assist steering force calculated by the first and second steering control modules, and
when the first motor position sensors enter an abnormal state, the first steering control module receives sub-signals from the second steering control module, operates the first motor position sensors based on the sub-signals received from the second steering control module, and calculates assist steering force based on the first motor position sensor signals of the first motor position sensors, the second steering control module calculates assist steering force based on the second motor position sensor signals of the second motor position sensors, and the first steering control module and the second steering control module control the steering motor based on the assist steering force calculated by the first and second steering control modules.

8. The steering apparatus of claim 7 , wherein the steering motor includes a dual winding steering motor.

Assignees

• Mando Corp

Inventors

• Jeong Sunhee

Classifications

• B62D5/046 Primary

  Controlling the motor · CPC title

• B60W50/00

  Details of control systems for road vehicle drive control not related to the control of a particular sub-unit {, e.g. process diagnostic or vehicle driver interfaces} · CPC title

• B60W50/023

  Avoiding failures by using redundant parts · CPC title

• B62D5/0481

  monitoring the steering system, e.g. failures · CPC title

• B62D5/0484

  for reaction to failures, e.g. limp home · CPC title