KR-102963626-B1 - Electromagnetic compatibility test system for test vehicles

KR102963626B1KR 102963626 B1KR102963626 B1KR 102963626B1KR-102963626-B1

Abstract

The present invention comprises: an electromagnetic shielding chamber unit for electromagnetic compatibility testing; a virtual driving simulator unit that generates virtual driving information and virtual obstacle information for a test vehicle based on a preset virtual driving scenario; an operating unit equipped with a steering wheel button and a scroll wheel, positioned on the steering wheel of the test vehicle to operate a driver assistance system of the test vehicle; an operating unit that manipulates the settings of the operating unit; a dynamometer unit installed inside the electromagnetic shielding chamber unit and synchronized with the virtual driving simulator unit to simulate the driving state of the test vehicle; and an electromagnetic compatibility test unit that tests the electromagnetic compatibility of a driver assistance system mounted on the test vehicle. The present invention relates to an electromagnetic compatibility testing system for a test vehicle, comprising: a control unit that controls the virtual driving simulator unit, the operating unit, the control unit, the dynamometer unit, and the electromagnetic compatibility test unit; wherein the operating unit is remotely and automatically operated unmannedly through the control unit to perform an electromagnetic compatibility test of the driver assistance system in a state that virtually simulates the situation in which the test vehicle operates on an actual road inside the electromagnetic shielding chamber unit.

Inventors

정윤재
이강민
박진우
류지일
김형주
권지훈
이준병
허관회
김종민
조성완

Assignees

주식회사 테크웨이즈
한국교통안전공단

Dates

Publication Date: 20260512
Application Date: 20250903

Claims (11)

Electromagnetic shielding chamber unit for electromagnetic compatibility testing; A virtual driving simulator unit that generates virtual driving information and virtual obstacle information for a test vehicle based on a preset virtual driving scenario; An operating unit equipped with a steering wheel button and a scroll wheel, positioned on the steering wheel of the test vehicle, and operating the driver assistance system of the test vehicle; An operating unit that operates the settings of the above-mentioned operating unit; A dynamometer unit installed inside the electromagnetic shielding chamber unit and synchronized with the virtual driving simulator unit to simulate the driving state of the test vehicle; An electromagnetic compatibility test unit for testing the electromagnetic compatibility of a driver assistance system installed in the above test vehicle; and It includes a control unit that controls the virtual driving simulator unit, the operating unit, the operation unit, the dynamometer unit, and the electromagnetic compatibility test unit. By remotely and automatically operating the operating unit through the above-mentioned control unit, an electromagnetic compatibility test of the driver assistance system is performed in a state that virtually simulates the situation in which the test vehicle operates on an actual road inside the above-mentioned electromagnetic shielding chamber unit. The above-mentioned operating unit is, A mounting module detachably coupled to the above-mentioned steering wheel; An operating module detachably coupled to the mounting module to operate the above operating unit; and An electromagnetic compatibility test system for a test vehicle characterized by including a verification module for capturing and recognizing display information regarding the real-time setting status of the above-mentioned operating unit.
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In paragraph 1, The electromagnetic compatibility test system of a test vehicle is characterized by the above-described control unit comparing the set target value of the driver assistance system, which is set according to the type of the test vehicle and the time of progress of the above-described virtual driving scenario, with the current state value of the driver assistance system of the test vehicle, which is verified in real time through the verification module, and calculating the control target value of the above-described operation module when the set target value and the current state value are different.
In paragraph 3, The above mounting module is, An upper fixing jig having a through-formed fastening hole and wherein the fastening hole is spaced apart at a predetermined interval along the longitudinal direction, and a lower fixing jig that clamps the steering wheel together with the upper fixing jig; A lower jig having a horizontal portion having an insertion hole formed through the lower portion to correspond to the fastening hole, and a vertical portion extending in a vertical direction in part from the horizontal portion, and detachably coupled to the upper portion of the upper fixing jig; A connecting jig having a first movable part formed to extend vertically and formed through, and detachably coupled to the lower jig so as to face the vertical part in the width direction; and An electromagnetic compatibility test system for a test vehicle, characterized by comprising: an upper jig having a plurality of module grooves formed so as to allow the above-mentioned operating module to be detachably attached on one side, a second movable part formed to be formed through extending in the longitudinal direction on the other side, and the other side being detachably coupled to the above-mentioned connecting jig.
In paragraph 4, The above-mentioned operation module is, A press operation part attached to the above module home and performing a press operation of the above steering wheel button; and It includes a multi-operation unit attached to the module groove to perform pressing, left-right tilting, and up-down scrolling operations of the scroll wheel. An electromagnetic compatibility test system for a test vehicle, characterized in that one or more of the push operation parts and one or more of the multi-operation parts are attached and detached in a press-fit manner while their arrangement is changed in the module groove, corresponding to the arrangement of the steering wheel button and the scroll wheel that changes according to the type of test vehicle.
In paragraph 5, The above-mentioned pressing operation part is, A mounting case attached to the above module home; A coupling case having a hollow portion formed through in a vertical direction inside and coupled to the lower part of the mounting case; A pressing rod portion that is movable in a vertical direction and is disposed in the hollow portion such that a portion of it is exposed to the outside of the coupling case to perform a pressing operation of the steering wheel button; and An electromagnetic compatibility test system for a test vehicle characterized by including a pressing actuator disposed between the mounting case and the coupling case to provide power for moving the pressing rod in a vertical direction in conjunction with the pressing rod.
In paragraph 6, The above-mentioned pressing operation part is, The electromagnetic compatibility test system of a test vehicle further comprises a press tip formed to be bent at a predetermined angle to press or release the steering wheel button at a different location in place of the press rod portion corresponding to the position of the steering wheel button, and detachably coupled to the press rod portion.
In Paragraph 7, The above multi-operation unit is, An outer case formed with an open bottom and mounted in the module groove; A connecting rod extending in the width direction inside the above outer case; An inner block disposed to be movable in the width direction on the above connecting rod; and An electromagnetic compatibility test system for a test vehicle characterized by including a first actuator disposed on one side and the other side in the width direction of the inner block to move the inner block in the width direction.
In paragraph 8, The above multi-operation unit is, A lower case having a cavity formed through in a vertical direction inside and coupled to the lower part of the inner block; A rod portion positioned to be movable in a vertical direction in the above-mentioned cavity; A second actuator disposed between the inner block and the lower case to provide power for moving the load portion in a vertical direction by being coupled to the load portion; and An electromagnetic compatibility test system for a test vehicle, characterized by including: an operating part coupled to the leading end of the load part to move in conjunction with the vertical movement of the load part, and partially exposed to the outside of the lower case to perform pressing operation, left-right tilting operation, and up-down scrolling operation of the scroll wheel.
In Paragraph 9, The above operating part is, A base part coupled to the tip of the above-mentioned rod part; A scroll actuator disposed in the above base portion; An actuator wheel rotatably coupled to the base portion and driven by rotation by the power of the scroll actuator; and An electromagnetic compatibility test system for a test vehicle characterized by including a scroll wheel drive wheel that is rotatably coupled to the base portion and rotates in conjunction with the actuator wheel.
In Paragraph 10, The above control unit outputs a driving signal according to a calculated control target value to operate the push operation unit and the multi-operation unit, or to operate either the push operation unit or the multi-operation unit, thereby operating at least one of the steering wheel button and the scroll wheel, and compares the operation state value of the driver assistance system confirmed in real time through the verification module with the set target value; if the operation state value and the set target value match, outputs the control target value of the push operation unit and the multi-operation unit as an initial signal to release the operation of the push operation unit and the multi-operation unit, and maintains the operation state of the steering wheel button and the scroll wheel at the initial position, and performs an electromagnetic compatibility test of the driver assistance system in a state that virtually simulates the situation of the test vehicle operating on an actual road inside the electromagnetic shielding chamber unit.

Description

Electromagnetic compatibility test system for test vehicles The present invention relates to an electromagnetic compatibility testing system for a test vehicle, and more specifically, to an electromagnetic compatibility testing system for a test vehicle capable of automatically performing electromagnetic compatibility testing of a driver assistance system while virtually simulating a situation in which the test vehicle operates on an actual road inside an electromagnetic shielding chamber unit. With the advancement of the automotive industry, intelligent functions in vehicles are expanding. Specifically, active development is underway for various Advanced Driver Assistance Systems (ADAS) to enhance driver convenience and maintain safety. Advanced Driver Assistance Systems (ADAS) include, for example, Adaptive Cruise Control (ACC), which controls the vehicle's behavior according to the surrounding environment using surrounding environment sensing devices such as cameras or radar; Smart Cruise Control (SCC), which automatically controls the vehicle's speed while maintaining a certain distance by recognizing a vehicle ahead; Lane Keeping Assist System (LKAS), which assists in returning the vehicle to the lane by controlling steering when the vehicle deviates from the lane without using a turn signal due to driver inattention; and Smart Parking Assist System (SPAS), which recognizes a parking space and performs parking on behalf of the driver. Various such systems are being applied to vehicles. These Advanced Driver Assistance Systems (ADAS) have the advantage of reducing the burden of driving tasks, such as the driver performing acceleration or deceleration necessary to maintain distance from the vehicle ahead while driving on the road, for example, in the case of Adaptive Cruise Control (ACC). However, Advanced Driver Assistance Systems (ADAS) applied to vehicles for the convenience of drivers inevitably generate electromagnetic waves, and such electromagnetic disturbances may pose a problem by posing a threat to human health and the environment. As such problems have arisen, many countries are mandating Electromagnetic Compatibility (EMC) testing. Electromagnetic Compatibility (EMC) refers to the ability of an electronic device or system to operate normally in any electromagnetic environment without affecting other devices. In general, all wireless and communication products released to the market must pass electromagnetic compatibility testing to prove their safety. In other words, Electromagnetic Compatibility (EMC) compliance is a mandatory requirement in major global markets, and EMC testing is an essential process to meet legal requirements, improve product performance, and reduce the risk of non-compliance. Automobiles are no longer mechanical engine products; electrification and smartification are progressing so rapidly that they can be considered electronic products. In other words, as the rapid advancement of electronic control technology in the automotive sector has led to the application of many electronic control systems, the same electromagnetic compatibility performance is being required for these systems as well. In Korea, electromagnetic compatibility testing regulations for electric and hybrid vehicles have been strengthened through the amendment of laws related to automotive electromagnetic compatibility, and recently, there is an increasing demand for testing to verify the electromagnetic compatibility of future vehicles, such as autonomous vehicles, and vehicles equipped with advanced driver assistance systems. To ensure electromagnetic compatibility of automobiles, the vehicle and all electronic components must be designed and managed to suppress self-generated electromagnetic radiation while performing their intended functions, while possessing immunity to prevent malfunctions caused by other external electromagnetic waves. Electromagnetic compatibility (EMC) testing can be further divided into electromagnetic interference (EMI) testing, which refers to electromagnetic interference, and electromagnetic susceptibility (EMS) testing, which refers to electromagnetic susceptibility. Based on the detailed classification of these electromagnetic compatibility (EMC) tests, the electromagnetic compatibility test standards for automobiles and autonomous vehicles can be broadly divided into electromagnetic interference (EMI) testing and electromagnetic immunity testing (EMS). Electromagnetic interference (EMI) testing is administered by the International Special Committee on Radio Interference (CISPR), while electromagnetic immunity testing is managed by the International Organization for Standardization (ISO). Generally, international standards for electromagnetic compatibility of automobiles are broadly classified into three categories based on detailed test items. Specifically, broadband electromagnetic radiation from automobiles is regulated by CISPR 12, narrowband electromagnetic radiation b