Chroma EV Wireless Power Transfer ATS
Chroma WPT test solution performs interoperability, performance, and radiation emission testing of wireless inductive charging systems. Chroma provides WPT test solutions for all power classifications ranging from 3.7kVA to 22kVA. Simply adjust the parame
Key Features- Pre-defined test cases according to SAE J2954 and GB/T 38775 regulations
- User-friendly software to control power devices for WPT testing
- Customized automatic XYZ-positioning fixture for roll, pitch, and yaw testing
- Patented test jig for perfect center alignment of the Ground Assembly (GA) and Vehicle Assembly (VA)
- One-stop solution for WPT testing
Chroma WPT test solution performs interoperability, performance, and radiation emission testing of wireless inductive charging systems. Chroma provides WPT test solutions for all power classifications ranging from 3.7kVA to 22kVA. Simply adjust the parameters to test a variety of conditions with the easy-to-use WPT software.
▲ WPT ATS Components
Chroma WPT ATS tests comply with the SAE J2954 regulation. The modular design can easily upgrade to also meet upcoming regulations such as IEC 61980. Chroma WPT ATS is equipped with various automatic and semi-automatic fixtures on six axes for GA and VA placement with greater accuracy.
WPT Test Items
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Input RMS Current - Input RMS current - Input power - Input power factor (Refer to GBT 38775.3-2020 8.3) - Standby power consumption - AC cycle drop out (Refer to SAE J2954 9.1.7/p25) - Input voltage ramp - Harmonic distortion (Refer to GBT 38775.3-2020 8.4) - PLD simulation (Refer to SAE J2954 9.3.5/p28) |
Output Performance - DC output voltage (Refer to QC/T 895 6.5.5) - DC output current (Refer to QC/T 895 6.5.5) - Output power (Refer to QC/T 895 6.5.5) - Peak-peak noise (Refer to QC/T 895 6.5.4) - RMS noise (Refer to QC/T 895 6.5.4) - Overshoot voltage |
|—|—| |
Efficiency & Misalignment Coefficient (Refer to SAE 2954 14.3.1, GBT 38775.3 8.2) - Efficiency with X-axis offset - Efficiency with Y-axis offset - Efficiency with Z-gap offset |
Protection Tests - Over load (current) protection (Refer to GBT 38775.3 8.8.1) - Over voltage protection (Refer to GBT 38775.3 5.8.9) - Short circuit (Refer to GBT 38775.3-2020 8.8.2 ) |
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Regulation Testing - Line regulation (Refer to QC/T 895 6.3) - Load regulation (Refer to QC/T 895 6.5.2) - Combined regulations |
Special Tests (Customize) - Magnetic field (Refer to GBT 38775.4 / SAE 2954 10 P29) - Surface temperature (Refer to GBT 38775.1-2020 10.4.2) - FOD test (Refer to GBT 38775.3 5.8.5 / SAE J2954 15) |
EV WPT Test Platform
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A major benefit of wireless charging is the flexibility provided in alignment between the charging infrastructure and the vehicle. Vehicles can charge even without proper alignment, but to increase the efficiency and safety, some level of alignment is required. Chroma includes a XYZ-positioning fixture to accurately test the efficiency of the GA and VA at a variety of positions and heights. |
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| Chroma offers different solutions for different stages of testing, such as prototyping or EV testing. An automatic positioning device with multi-axes rotation enables yaw, roll, and pitch testing. Chroma’s patented center alignment jigs use a laser that places the GA and VA in the center to test with maximum efficiency. |  |
 ▲ EV WPT Test Platform Application |
 ▲ Multinational Patented Laser Alignment |
WPT FOD Test Fixture
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Since WPT uses radiation for charging, if there is any metallic object in between the charger facility and vehicle, the temperature could rise while charging which may lead to a hazardous situation. For safety precautions, the charger should not energize if it detects any foreign objects in between the GA and VA. To test above condition, Chroma offers a FOD test fixture to place the object at different positions and verify the charger’s behavior. These positons are documented so that the test results can be recreated. |
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WPT Power Test Software
Chroma’s software lets users adjust the parameters of the source/load equipment and positioning table for efficient testing. During the test, the interface displays test data and 2D/3D graphs in real time. After completion, it auto generates the test report and includes data and graphs for easy analysis.
▲ WPT Power Test Software
Convenient monitoring: Instant data display
Traceable review: Data sheets & 2D/3D charts
 ▲ Data Sheet |
 ▲ 2D Chart |
 ▲ 3D Chart |
|---|
Editing-free report: Automatic report compilation
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Input RMS current
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Input power
-
Input power factor (Refer to GBT 38775.3-2020 8.3)
-
Standby power consumption
-
AC cycle drop out (Refer to SAE J2954 9.1.7/p25)
-
Input voltage ramp
-
Harmonic distortion (Refer to GBT 38775.3-2020 8.4)
-
PLD simulation (Refer to SAE J2954 9.3.5/p28)
-
DC output voltage (Refer to QC/T 895 6.5.5)
-
DC output current (Refer to QC/T 895 6.5.5)
-
Output power (Refer to QC/T 895 6.5.5)
-
Peak-peak noise (Refer to QC/T 895 6.5.4)
-
RMS noise (Refer to QC/T 895 6.5.4)
-
Overshoot voltage
-
Efficiency with X-axis offset
-
Efficiency with Y-axis offset
-
Efficiency with Z-gap offset
-
Over load (current) protection (Refer to GBT 38775.3 8.8.1)
-
Over voltage protection (Refer to GBT 38775.3 5.8.9)
-
Short circuit (Refer to GBT 38775.3-2020 8.8.2 )
-
Line regulation (Refer to QC/T 895 6.3)
-
Load regulation (Refer to QC/T 895 6.5.2)
-
Combined regulations
-
Magnetic field (Refer to GBT 38775.4 / SAE 2954 10 P29)
-
Surface temperature (Refer to GBT 38775.1-2020 10.4.2)
-
FOD test (Refer to GBT 38775.3 5.8.5 / SAE J2954 15)
Traceable review: Data sheets & 2D/3D charts
| ▲ Data Sheet |
▲ 2D Chart |
▲ 3D Chart |
|---|
Editing-free report: Automatic report compilation
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