New Energy Vehicle Testing New Product Release—Low-Voltage Motor Simulator

The Low Voltage Electric Motor Emulator (LV-EME) is an active inductive load simulation device designed to simulate the electrical characteristics of low voltage motors, such as brushless DC motors, permanent magnet synchronous motors, and asynchronous motors. It provides motor and motor load characteristic simulation for the controller under test without the need for a real motor. The LV-EME can be applied in the design and development, fault injection, and functional testing of steering controllers, brake controllers, and other low voltage motor controllers.

Motor controller testing typically employs signal-level hardware-in-the-loop (HIL) testing, semi-power testing (with resistive-inductive loads), and mechanical bench testing. Signal-level HIL testing is suitable for verifying controller function strategies but cannot perform software and hardware function verification of internal controller current and power. Semi-power testing only passively consumes current and cannot actively apply phase current, back electromotive force (EMF), or simulate actual motor functions. Bench testing requires real motors and bench loads to participate in testing, but it is limited by mechanical installation, lacks flexibility, and cannot verify extreme working conditions.

The low-voltage motor simulator can meet the current demand for more comprehensive and flexible testing of motor controllers, enabling power-level hardware-in-the-loop testing for motor controllers.

Product appearance

Core Advantages

· Low voltage, high power

Covers high-precision power stage validation for DC motor controllers below 80V/30KW.

Zero-risk fault injection

Injection short circuit/overspeed and other test bench prohibited scenarios, flexible, safe, and easy to install.

Motor Model Free Reconstruction

Flexible configuration of motor types and parameters, acceleration controller-motor matching selection.

- Full lifecycle coverage

From development testing → aging validation → EOL final inspection, a single machine completes the product's closed-loop testing.

Test object

Steering controller

·      Brake Controller

Chassis Domain Controller

- Other low voltage motor controllers, etc.

Application Scenarios

Development Phase Testing

It can simulate the electrical characteristics of motors with a DC bus voltage of 80V and below, enabling power stage testing during the controller development phase.

Aging test

High-frequency precise simulation of phase current to conduct controller aging tests.

EOL Testing

Implement the controller offline functionality test.

Technical Specifications

Test Interface