Method and apparatus for detecting trouble of steering angle sensor initialization
A steering angle sensor, initialization technology, applied in steering mechanisms, electric steering mechanisms, power steering mechanisms, etc., can solve problems such as incorrect actions, deterioration of steering wheel reset performance, and threat to driver safety.
Active Publication Date: 2011-05-04
HL MANDO CORP
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Problems solved by technology
At the same time, when the steering angle sensor is initialized at a point spaced from the center point after initialization with respect to the center point of the steering angle sensor, the skew angle of the steering angle sensor is generated
Skew angle will greatly deteriorate the reset performance of the steering wheel and cause problems such as different steering feel, overly sensitive operation of the vehicle's Electronic Stability Control (ESC) system, etc.
Furthermore, other modules that receive the steering angle for use can take incorrect actions that can cause problems that can threaten the safety of the driver
Method used
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[0012] Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, the same elements are denoted by the same reference numerals even though they are shown in different drawings. Further, in the following description of the present invention, when a detailed description of known functions and configurations incorporated herein will make the gist of the present invention unclear, the descriptions will be omitted herein.
[0013] In addition, terms such as first, second, A, B, (a), (b), etc. may be used herein when describing components of the present invention. Each of these terms is not used to define the nature, order or sequence of the corresponding part, but is only used to distinguish the corresponding part from other parts. It should be noted that if it is described in the specification that one part is "connected", "bonded" or "joined" to another part, even though the first part ...
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Disclosed is a method and an apparatus for detecting a steering angle sensor initialization fault, wherein the apparatus includes a steering angle sensor initialization detector for detecting a performance of initialization of a steering angle sensor of a vehicle; a straight drive determination unit for determining a straight drive state of the vehicle based on at least one of a steering angle speed, a torque, and a vehicle speed when the performance of the initialization has been detected; and a fault detector for detecting an offset angle of the steering angle sensor, determining if the offset angle is equal to or larger than a predetermined angle, and detecting a fault in the initialization of the steering angle sensor when the vehicle has been determined to be in the straight drive state. The method and the apparatus can detect the offset angle generated in the initialization of the steering angle sensor and detect the fault in the initialization of the steering angle sensor basedon the detected offset angle, thereby effectively preventing occurrence of problems due to the fault in the initialization of the steering angle sensor.
Description
technical field [0001] The invention relates to a method and a device for detecting an initialization failure of a steering angle sensor. More particularly, the present invention relates to a method and apparatus for detecting an initialization failure of a steering angle sensor capable of detecting a skew angle generated in initialization of the steering angle sensor and detecting the steering angle sensor based on the detected skew angle. A failure occurred during the initialization of . Background technique [0002] It is a recent trend for vehicles to use Motor Driven Power Steering (MDPS) systems that drive the motor through electronic control, which can make steering power lighter at low speeds and heavier at high speeds, thereby providing the driver with High-speed driving stability. [0003] This MDPS system uses a steering angle sensor that measures the absolute steering angle. Meanwhile, when the steering angle sensor is initialized at a point spaced from the ce...
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IPC IPC(8): G01B21/22
CPCB62D5/0457B62D5/049B62D15/0245B62D5/00B62D5/04
Inventor 卞太完
Owner HL MANDO CORP