EV Motorcycle

Electric Motorcycle Motor Test Bench Dynamometer

MEA ELECTRIC Motorcycle MOTOR Test Bench Dynamometer is designed for the durability test, routine performance test, and Road Condition Simulation test of the electric motorcycle motor and motor controller.

The test bench is mainly used for routine performance test, durability and load test as well as other customized development tests such as Motor or Motor Controller performance test,  Research, and Development process 

The MEA ELECTRIC Motorcycle MOTOR Dynamometer can be used to test the performance of the electric motor for the electric motorcycle. It will provide users with the hardware test support and assist user to improve the design and verify the product performance.

 

Electric Motorcycle Motor testing Features:

Selected Capabilities:

  • The MEA regenerative Dynamometer System (MEA RDS) enables:

    • Complete load performance testing: Torque, Speed, Current, Efficiency, Power Input, Power Output.
    • Standard electrical parameters testing: HV, Vibration, Noise, and others.
    • Additional testing: Cogging, Back EMF, Friction, Friction Spectrum, Ripple Torque.
    • Automatic temperature rise test: Thermocouple device with 4 to 16 channels, Current, Voltage, Speed, Torque, Input Power, Output Power, all synchronized to each temperature.
    • Electrical Motorcycle Motor Drive Cycle Load Simulation: Real-time simulation of scooter/driver, with acceleration, brake, change of vehicle states.
    • Battery Simulation: Battery cycle testing (Charge/Discharge), Battery SOC (State Of Charge) script and Battery SOD (State Of Discharge) script, during advanced battery simulation and simple battery simulation; Special feature: Low voltage dip at current transient; System includes Output Filter with high capacitance; Testing at U mode: Voltage Control (CV).
    • Battery Testing: I+ mode: Current Control (CC+); I- mode: Current Control (CC-); P mode: Power Control (CP), CC-CV, Step for cut-off condition (ET, EV, EC, CC time, CV time, Cap%, etc..), Protection (OV & LV, OC & LC, OT).
    • Additional EM Tests: Performance Generating Mode & Performance Motoring Mode, Stall Torque, Cogging Torque, Back EMF RMS, Open Circuit Back EMF, Back EMF Constant KE, No Load Coupled & Uncoupled, Torque Ripple Measurements at Low RPM & at High RPM, Electromechanical Time Constant, Voltage and Current Harmonics, Load from Excel File, Speed Torque Scope Viewer, Deceleration Test (MOI Calculation), Servo Bandwidth (Speed Loop & Current Loop), Dynamic Testing during acceleration and deceleration, Friction vs. Speed & Friction Drag Torque, Torque Speed FFT, Performance at Variable Voltage, Inductance Test 3 Phases, Vibration; ISG Tests: Generation Characteristic; ISO Efficiency Tests: ISO Efficiency and ISO Efficiency Contour, S1 to S8 – IEC duty cycles of operation for electrical motors.

 

 

Battery Simulation

As a part of the E-mobility motors testing system, Battery simulation is a must.

The MEA ELECTRIC Motorcycle MOTOR Test Bench Dynamometer provides the following testing and simulations 

A Regenerative DC power supply with Four-Quadrant operation allows to get accurate simulations and testing results:

  • Battery Resistance Model System.
  • Battery Charging Simulation
  • Battery Discharging Simulation 

Battery simulation:

  • Modular scalability in the typical power range from 5 to 500 kW.
  • Modular scalability in the typical current range from +/- 10 to 1 200 A.
  • Voltage ranges (5  to 1 000 V) that can be adapted to the specific application.
  • Fast voltage control (typically: 3 ms).
  • Fast current control (typically: 1.3 ms).
  • Fast load transient response (typically: 1.3 ms for a load step of 10 % to 90 % of output current).
  • High control accuracy – typically 0.1 % for current and voltage.
  • Real-time simulation.
  • Protection against short circuits.
  • Insulation monitoring.
  • Standalone or integrated on the intermediate circuit (DC).
  • Battery simulation can be supplied as a standalone solution,or can be integrated into the test system prior to delivery.

 

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MEA’s implementation of the standard, combined with unique patented capabilities, enables you to defy the great challenges and enables
your support engineers in their efforts to continuously improve electric drives. 
The MEA EV-RDS are full of turnkey systems. The scope of the MEA EV-RDS is comprised of AC induction servomotors as loading motors with high-resolution encoders, high-accuracy torque sensors, integrated power analyzers, and temperature measurement modules, together with unique dynamic tests during the motor acceleration period.

Selected Capabilities:

  • The MEA Regenerative Dynamometer System (MEA RDS) enables:

    • Complete load performance testing: Torque, Speed, Current, Efficiency, Power Input, Power Output.
    • Standard electrical parameters testing: HV, Vibration, Noise, and others.
    • Additional testing: Cogging, Back EMF, Friction, Friction Spectrum, Ripple Torque.
    • Automatic temperature rise test: Thermocouple device with 4 to 16 channels, Current, Voltage, Speed, Torque, Input Power, Output Power, all synchronized to each temperature.
    • Electrical Vehicle Motor Drive Cycle Load Simulation: Real-time simulation of scooter/driver, with acceleration, brake, change of vehicle states.
    • Battery Simulation: Battery cycle testing (Charge/Discharge), Battery SOC (State Of Charge) script and Battery SOD (State Of Discharge) script, during advanced battery simulation and simple battery simulation; Special feature: Low voltage dip at current transient; System includes Output Filter with high capacitance; Testing at U mode: Voltage Control (CV).
    • Battery Testing: I+ mode: Current Control (CC+); I- mode: Current Control (CC-); P mode: Power Control (CP), CC-CV, Step for cut-off condition (ET, EV, EC, CC time, CV time, Cap%, etc..), Protection (OV & LV, OC & LC, OT).
    • Additional EV Tests: Performance Generating Mode & Performance Motoring Mode, Stall Torque, Cogging Torque, Back EMF RMS, Open Circuit Back EMF, Back EMF Constant KE, No Load Coupled & Uncoupled, Torque Ripple Measurements at Low RPM & at High RPM, Electromechanical Time Constant, Voltage and Current Harmonics, Load from Excel File, Speed Torque Scope Viewer, Deceleration Test (MOI Calculation), Servo Bandwidth (Speed Loop & Current Loop), Dynamic Testing during acceleration and deceleration, Friction vs. Speed & Friction Drag Torque, Torque Speed FFT, Performance at Variable Voltage, Inductance Test 3 Phases, Vibration; ISG Tests: Generation Characteristic; ISO Efficiency Tests: ISO Efficiency and ISO Efficiency Contour, S1 to S8 – IEC duty cycles of operation for electrical motors.

 

Selected Systems:

 

 

Patented Unique capabilities with MEA IDS  

  • Complete load testing without connecting the EV motor to any mechanical load.
  • Ripple Torque
  • Friction Torque
  • Friction Spectrum
  • Cogging Torque
  • Speed & Torque Spectrum
  • Back EMF
  • Dynamic and static data during motor acceleration.

 

 

 

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