The invention relates to an environmental pollution source-tracing system and method based on characteristic pollution factor source analysis. The environmental pollution source-tracing method includes the steps: acquiring pollution factor data to construct a pollution source DNA library and updating the pollution source DNA library in real time; establishing a diffusion model, performing storage,management, query and analysis of comprehensive data acquisition on data of monitoring points, forming long lasting data accumulation, and realizing a basic database of environmental monitoring data;completing butt joint with a water quality and air automatic monitoring station; collecting related monitoring data in real time or at regular intervals; dividing pollutants into primary pollutants and secondary pollutants; deducing the secondary pollutants according to a reverse reaction principle to obtain corresponding primary pollutants; and analyzing the primary pollutants on the basis of afactor analysis method, a clustering analysis method and an analytic hierarchy process, and matching the pollution source DNA library to determine a pollution source in combination with the diffusionmodel and a GIS map, so that technical analysis support is provided for an environmental emergency event decision maker to quickly discover a pollution source.

Environmental pollution source-tracing system and method based on characteristic pollution factor source analysis

A rotary gear select unit includes: a housing disposed in a vehicle; a substrate disposed in the housing to be received therein; a rotary knob unit having one end disposed to be exposed to one side of the housing, and the other end disposed to be rotatable in the housing; a rotary moving block unit disposed in the housing, and connected to the rotary knob unit to be rotated therewith; a rotary sensing magnet rotated by being connected to the rotary moving block unit; a rotary sensing unit disposed on one surface of the substrate, and including a rotary sensing module disposed in a movable range of the rotary sensing magnet to sense a rotating state of the rotary sensing magnet; and a rotary detent section disposed on the housing and the rotary moving block unit, and configured to detent the rotation of the rotary moving block unit. The rotary sensing module includes a plurality of sensors which sense a selection of one among transmission ranges of the vehicle according to the position of the rotary sensing magnet. With respect to any two successive transmission ranges among the transmission ranges of the vehicle, the rotary sensing magnet activates at least one of the sensors. Therefore, the present invention may provide the rotary gear select unit of a structure, in which sensing accuracy may be improved in a noncontact type rotary gear select unit having gear elements.

Rotary sensor unit for a vehicle

A cleaning device for a pressure sensor associated with an engine system includes a one-way valve having an inlet side and an outlet side. The outlet side is in selective fluid communication with an inlet of the pressure sensor. The cleaning device also includes a compressed air source in selective fluid communication with the one-way valve. The cleaning device further includes a control module communicably coupled to each of the pressure sensor, the one-way valve, and the compressed air source. The control module is configured to control an operation of the one-way valve and the compressed air source to impart at least one of a long burst of modulated air and a short burst of modulated air on the inlet of the pressure sensor.

Pressure sensor cleaning device

An electronic shift lever includes a motor part configured to generate a driving force according to an input signal from a controller which receives an input signal from a user, an output shaft assembly coupled to the motor part and rotated by a driving force of the motor part, a manual shaft coupled to the output shaft assembly and configured to receive the driving force of the motor part, a support member disposed between the motor part and the output shaft assembly and between the housing and the output shaft assembly, a magnet rotor having a first end into which the output shaft assembly is inserted and a second end through which the manual shaft passes, a Hall sensor configured to detect a rotational position of the magnet rotor, and the housing which accommodates the motor part, the output shaft assembly, the support member, and the Hall sensor.

Electronic shift lever

The present invention relates to an inhibitor switch which comprises: a base terminal; one shift terminal arranged to be spaced from the base terminal; and an M-contactor of which one end is connected to the base terminal, and the other end is connected to the shift terminal, wherein in accordance with operation of a manual lever, the M-contactor transmits P/R/N/D stage shift signals to an automatic transmission control unit (TCU) as a position of connecting the base terminal and the shift terminal is moved. According to the present invention, the number of terminals for gear shifting in the inhibitor switch is reduced to improve manufacturing ability and reduce production costs.

Inhibitor switch auto transmission comprising this and control method for gear shift

The present invention relates to a method for cleaning an air flow rate sensor, which can clean a polluted air flow rate sensor to continue to perform precise air flow rate measurement via the air flow rate sensor. The present invention comprises: an air flow rate sensor separation step of separating the polluted air flow rate sensor from an air intake line of a vehicle; a primary pollutant removing step of inputting the air flow rate sensor, separated in the air flow rate sensor separation step, into flowing deionized water to remove a pollutant; a secondary pollutant removing step of injecting gas to the air flow rate sensor, from which the pollutant is removed by the primary pollutant removing step, to remove a pollutant; and an air flow rate sensor drying step of inputting the air flow rate sensor, from which the pollutant is removed by the secondary pollutant removing step, into a high temperature chamber to dry the air flow rate sensor.

Cleaning method of air flow sensor

The present invention relates to an inhibitor switch for a vehicle. More specifically, the present invention detects the shift speed of an automatic transmission by sensing a rotation angle of a rotor and allows or blocks the starting of an engine by a starting contactor mutually connecting or blocking multiple terminals. The present invention includes: a housing with a first terminal and a second terminal mounted on an upper part to be mutually separated; a rotor which is mounted on the upper part of the housing in order to be rotatable; a shift speed detector which detects the shift speed of an automatic transmission by sensing the rotation angle of the rotor; a cover which is arranged in the upper part of the rotor and is fixated and combined with the housing; a starting contactor which allows or blocks the starting of an engine by being mounted on the lower part of the cover in order to be ascendable and descendible, being selectively in contact with the first and second terminal when the rotor rotates, and electrically connecting or blocking the first and second terminal; and a spring which elastically supports the starting contactor in a downward direction where the housing is arranged by being arranged between the cover and the starting contactor. A penetration hole is formed to enable the starting contactor to penetrate in the rotor. When the rotor rotates, the starting contactor allows or blocks the starting of an engine by the following functions: connecting the first terminal and the second terminal by being in contact with the first terminal and the second terminal by penetrating the penetration hole; and blocking the first terminal and the second terminal by being in contact with the upper side of the rotor.

Inhibitor switch for vehicle

The present invention relates to an apparatus for measuring a steering angle of an automotive steering shaft and, more specifically, to an apparatus for measuring a steering angle of an automotive steering shaft which can detect a rotation angle of the steering shaft by measuring the magnetic flux of a permanent magnet that is installed on a sub gear and rotates. The present invention comprises a lower housing where a first insertion hole is formed for the steering shaft to be inserted and a coupling projection projects upwards; an upper housing where a second insertion hole is formed for the steering shaft to be inserted and which is connected to the lower housing; a main gear which is inserted into an insertion hole that comprises the first insertion hole and the second insertion hole in order to be connected to the steering shaft; multiple sub gears which are engaged with the main gear and have a coupling hole in the center for the coupling projection to be inserted; a permanent magnet which is installed in the sub gear; and a circuit board to which a magnetic element is installed to measure the magnetic flux of the permanent magnet that rotates along with the sub gear.

Apparatus for detecting angle of steering wheel

Disclosed is an inhibitor switch in which a magnet (30) and a hall element (40) are installed so as to be spaced apart from each other in the horizontal direction, and installation spaces for the magnet (30) and the hall element (40) are separated by a partition (15). As the hall element (40) does not use vertical magnetic flux, a gear position can be accurately detected in spite of vertical movement of the magnet (30). In addition, since the hall element (40) is installed in a separate space that is separated from a space in which the magnet (30) is installed, the hall element (40) is protected from moisture and foreign substances penetrating into the magnet installation space and therefore damage is prevented.

Contactless inhibitor switch

Disclosed is a method for detecting an absolute angle of a steering angle sensor in which a mathematical formula is simple and a calculation speed is fast. The method for detecting an absolute angle of a steering angle sensor includes a step of detecting a first relative angle and a second relative angle in which first and second sub-gears rotate; a step of calculating a reference index (N) for detecting an absolute steering angle by using the first and second relative angles; a step of extracting an absolute steering angle reference angle component corresponding to the reference index (N) from a prebuilt absolute steering angle reference angle matrix; and a step of calculating the absolute steering angle of a steering axis.

Cho Soo Man

Papers

Cleaning method of air flow sensor

Inhibitor switch for vehicle

Apparatus for detecting angle of steering wheel

Contactless inhibitor switch

Method of absolute angle for steering angle sensor