Patent ID: 11951862
Assignee: CATARC NEW ENERGY VEHICLE TEST CENTER (TIANJIN) CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 5:
6. A method for testing an assist function of electric vehicle wireless power transfer using system according to claim 1, comprising:
S1: preparing the test site, wherein the test site comprises a first site for establishing the entire vehicle test environment and a second site for establishing the vehicle component test environment;
S2: establishing a moving track of the mechanical arm, wherein a length of the to-be-tested member is set to M, a width thereof is set to N, M is greater than N, an extending length of the mechanical arm is set to L, and L is greater than 0.5M and L is greater than 0.5N,
if L is greater than M, one test region is set,
if L is greater than N and L is less than M, two test regions are set,
if L is less than M and L is less than N, four test regions are set,
a geometric center of the test region or a vertex of the test site is used as an initial point of the mechanical arm;
if there is only one test region, the movable platform remains stationary in a test process, and a moving track of the foreign object simulation equipment is capable of covering the test region by controlling the mechanical arm;
if there are two test regions, the movable platform sequentially moves the mechanical arm to two long sides of the to-be-tested member during the test process, and the moving track of the foreign object simulation equipment is capable of covering one test region by controlling the mechanical arm on each long side; and
if there are four test regions, the movable platform sequentially moves the mechanical arm to a left front side, a right front side, a left rear side, and a right rear side of the to-be-tested member during the test process, and the moving track of the foreign object simulation equipment is capable of covering one test region by controlling the mechanical arm on each side;
S3: arranging an electromagnetic field strength measurement instrument probe on the front end of the mechanical arm, and determining a live object protection test region, which comprising the following steps:
S31: establishing a coordinate system by using a central axis of the ground-assembly device as an X direction, testing an electromagnetic field (EMF) value in the X direction, and using a point on an X axis corresponding to a set EMF limit value as a zero point in the X direction;
S32: respectively testing the EMF value in positive and negative directions of a Y axis, changing a height interval along a Z axis, and recording EMF values in a Y direction corresponding to a same X coordinate value and different Z coordinate values;
S33: sequentially selecting a plurality of X coordinate values on the X axis, and repeating step S2 for each of the plurality of X coordinate values;
S34: connecting coordinate points corresponding to all EMF limit values obtained in step S31 and step S32 to a plane; and
S35: uniformly expanding the plane outward by 10 cm to obtain the live object protection test region; and
S4: arranging the living body simulation equipment on the front end of the mechanical arm in the live object protection test region, and recording a live object protection test response on each test point, wherein if the living body simulation equipment enters the live object protection test region, the system sends a response, and vice versa.