ISO 21782-3 Electrically Powered Road Vehicles - Performance Test of Motor and Inverter

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of ISO 21782-3 testing. This standard covers performance tests for motor and inverter designed as a voltage class B electric propulsion system for electrically powered road vehicles.

The purpose of this test is to measure the temperature rise in the engine to operate the engine under specified conditions and to ensure that the engine thermal performance is as designed.

ISO 21782-3 is part of a set of standards that specifies test specifications for electric drive components used in electrically powered road vehicles. Part 3 of this series, ISO 21782-3, provides guidelines for performance testing of motor and inverter used in electric drive systems.

The standard defines various terms and concepts related to performance testing of electrical drive components, such as:

• Motor efficiency: ratio of mechanical power output to electrical power input;
• Motor torque: rotational force produced by the motor shaft;
• Inverter efficiency: Ratio of output power to inverter input power;
• Drive output current: current supplied to the motor by the drive.

ISO 21782-3 provides guidance on performance testing of motor and inverter, including:

• Measurement of motor and inverter parameters: the standard specifies methods and equipment for measuring parameters such as motor torque, motor efficiency, inverter efficiency and inverter output current;
• Test conditions: the standard specifies the environmental and electrical test conditions that must be maintained during the testing process;
• Test procedures: the standard outlines the test procedures to be followed, including setting up test equipment, measuring required parameters, and recording results;
• Acceptance criteria: the standard specifies acceptable performance levels for motor and inverter components based on measured parameters.

ISO 21782-3 provides a standardized approach to performance testing of electrical drive components; this helps ensure that these components meet required performance standards and operate safely and reliably in electrically powered road vehicles.

EUROLAB assists manufacturers with ISO 21782-3 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.