Monitoring of the running state of the motor of the car seat
A technology for operating status and car seats, applied in the direction of DC motor speed/torque control, electrical components, control systems, etc., can solve problems such as increased manufacturing and installation costs, magnetic ring shedding, etc. The effect of mounting a multi-pole magnetic ring
Inactive Publication Date: 2017-04-19
SAIC MOTOR
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Problems solved by technology
[0006] In the above-mentioned car seat adjustment system, the method based on the Hall element is used to determine the seat position and detect the state of the DC motor, which has many disadvantages
For example, in order to generate Hall pulse signals, multiple magnetic rings need to be installed on the motor shaft, which increases the manufacturing and installation costs, and the magnetic rings are easy to fall off from the shaft over time
Method used
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[0054] The specific embodiments are described below to illustrate the present invention by referring to the figures. However, it should be understood that these specific embodiments are only exemplary, and have no limiting effect on the spirit and protection scope of the present invention.
[0055]In this specification, the term "movement" can be understood as a change in the position and state of an object, the form of which includes, for example, translation, rotation, or a combination thereof. The term "coupled" should be understood to include the direct transfer of energy or signals between two units, or the indirect transfer of energy or signals via one or more third units, and the signals referred to here include but are not limited to Signals that exist in the form of electricity, light, and magnetism. In addition, terms such as "comprising" and "comprising" indicate that in addition to the units and steps that are directly and explicitly stated in the specification an...
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The invention relates to automotive electronic technologies, in particular to a method and a device for monitoring the running status of an automobile seat motor. The method for monitoring the running status of a DC motor includes the following steps: obtaining a current waveform of the DC motor, wherein the current waveform includes a ripple wave component; calculating the differential value of the ripple wave component; determining the running status of the DC motor according to the differential value. According to the embodiment of the invention, the seat positioning and DC motor status detection through a method based on a Hall element have many defects. For example, multiple magnetic rings have to be mounted on a motor rotating shaft to produce Hall pulse signals, which not only increases the manufacture and mounting costs but also leads to the problem that the magnetic rings easily drop from the rotating shaft after a longer service time.
Description
technical field [0001] The invention relates to automobile electronic technology, in particular to a method and a device for monitoring the running state of an automobile seat motor. Background technique [0002] The car seat must meet the requirements of comfort, that is, it can enable the driver to obtain the best view, easy to operate the steering wheel, pedals, gear lever and other manipulation convenience, and can also obtain the most comfortable and most accustomed riding angle. But everyone's body shape is not the same, and it will change with age, so when designing the driver's seat, designers can only design the driving space based on the statistical data of adults in a certain area and find out the average data and seats. [0003] This leads to the second basic requirement for car seats - adjustability. In modern cars, manufacturers will provide electrically adjustable seats. Electric seats are generally composed of seat cushions, backrests, pillows, skeletons, ...
Claims
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IPC IPC(8): H02P7/00
Inventor 邓恒吴招辉
Owner SAIC MOTOR