By clicking “Accept”, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. View our Privacy Policy for more information.
DenyAccept
Dynamometer
Auxiliaries

EV Performance Measurement System

Integrated with chassis dynamometer for testing electric energy consumption and efficiency test modes
Electric Vehicle Driving Performance Measurement System and Accessories (SAE J1634):

As a rising demand of establishing a measurement system for testing electric vehicle driving performance, the standards stipulated in relevant testing regulations are satisfied to enable driving performance tests, including domestic and international electric vehicle certification test.

The various modes have been developed to measure power consumption, AC power consumption, single-charge driving distance, and regenerative efficiency according to the internationally recognized WLTC mode. It is possible to configure test modes for battery efficiency (SOC), both domestic and international regulatory energy efficiency tests, and automatically generate test and result reports. The system allows for automatic constant-speed segment settings, test termination after checking the discharge state, and simulation modes for real-road load simulation (Chassis Dynamometer RSM). Users can customize input and settings for each segment as desired. By interfacing with the chassis dynamometer and Driving Robot (Throttle Actuator), various controls, including vehicle information and ongoing driving modes and road gradients, can be managed effectively.

Operates independently or in conjunction with the Automation System, with data sent to Automation and can also be stored externally (USB, etc.). The chamber's electric vehicle charging module was developed in-house by TeSys and features an impressive high-speed charging/discharging capability with a power supply of 120kW, far exceeding the specifications of the 20kW slow charging speed as a normal option by the invention of Multi-functional "Charge/Discharge" battery simulator.

TESYS - Dynamometer - Auxilaries - EV Performance Measurement System

1

Applicable Driving Cycle Modes

PERFORMANCE AND SPECIFICATIONS

The various modes have been developed to measure power consumption, AC power consumption, single-charge driving distance, and regenerative efficiency according to the internationally recognized WLTC mode.It is possible to configure test modes for battery efficiency (SOC), both domestic and international regulatory energy efficiency tests, and automatically generate test and result reports. The system allows for automatic constant-speed segment settings, test termination after checking the discharge state, and simulation modes for real-road load simulation (Chassis Dynamometer RSM). Users can customize input and settings for each segment as desired. By interfacing with the chassis dynamometer and Driving Robot (Throttle Actuator),various controls, including vehicle information and ongoing driving modes and road gradients, can be managed effectively.

§ Electric Energy Efficiency Measurement Modes North America SAE J1634: UDDS,HFEDS, US06, SC03, SCT, MCT, SMCT, SMCT+ Europe WLTP GTR 15: WLTP China, India,and domestic regulations outside of Korea

Satisfies majority of domestic and international testing requirements & standards

  • The Ordinance from Ministry of Environment Ordinance "Notice on Test Methods for Energy Consumption Efficiency, Greenhouse Gas Emissions, and Fuel Consumption Rate of Vehicles" [Appendix 3] Measurement methods for energy consumption efficiency and fuel consumption rate of electric vehicles
  • The Ordinance from Ministry of Environment "Regulations on Evaluation for Eligibility of Electric Vehicle Subsidies"
  • SAE J1634 "Battery Electric Vehicle Energy Consumption and Range Test Procedure" (Revised 2021-04)
2

Implementation of Test Methods - Key Points

All test procedures specified in domestic regulations and U.S. SAE J1634 are implementable, and users should be able to select the test method during the preparation process.

The selected test method is automatically reflected in the Driver's Aid and the test results are automatically calculated and printable upon completion.

  • SCT (Single-Cycle Range and Energy Consumption Test) Method:Automatically setup the following repeat selected driving cycles (UDDS, Highway HWFET, US06). Users should be able to input and modify idle times between cycles within legal limits.For motorcycles, the user should be able to automatically repeat selected test modes (Cycle) such as CVS-40 mode, city driving mode (FTP72, UDDS), and high-speed driving mode (HWFET).When the selected test modes are set for repetition, the user-inputted time for intermission between modes should be applied.The vehicle speed, termination conditions, and other driving parameters according to the statutory test methods should be automatically configured and reflected in the results.
  • MCT (Multi-Cycle Range and Energy Consumption Test) Method:Composed of urban driving (UDDS), highway driving (HWFET), and constant-speed driving segments (CSCM, CSCE) based on vehicle specifications.User can adjust CSCM, CSCE driving times and idle times within specified tolerances. Display total and estimated driving distances, and real-time updates on predicted distances based on vehicle efficiency during the test. Changes in test modes (CSCM, CSCE driving modes) due to altered predicted driving distances should be immediately reflected in the Driver’s Aid. This ensures that the test operator is aware of the mode adjustments in real-time and can continue driving seamlessly and is also aware of test conditions are met for CSC driving conditions without interruptions.
  • SMCT (Short Multi-Cycle Range and Energy Consumption Test) Method:Optional idle times between S1 and S2 phases (UDDS and HFEDS) adjustable by users (0-30 minutes). Depending on user selection for vehicle thermal management system, guide through discharge and recharge procedures, while Battery Simulator and control system interact to calculate and record discharge rate (E/y). Therefore, all testing processes and measurement data must be recorded and stored in the integrated control system. The automatic determination of test completion criteria should trigger the calculation of final-results, including the validation of Yestimated vs Yactual (estimated vs actual values).
  • SMCT+ (Short Multi-Cycle Range and Energy Consumption Test Plus Steady State) Method:Different procedures based on user selection for thermal conditioning of the test vehicle and record and store all driving records and related data automatically.After the SMCT driving mode, during the CSC segment driving, the idle time for each CSC sub-phase should be user-selectable within the allowed range of 5 to 30 minutes. *If the termination condition during CSC driving is reached, it should be automatically determined, and the user should be notified of the end of the driving. Additionally, the final-results should be automatically calculated.

Maximum Speed, Acceleration, and Climbing Performance Test Method: Test procedures according to statutory driving conditions should be displayed on the Driver’s Aid so that the test operator can perceive them. The final-results should be automatically calculated and hence incorporated

3

Measurement System Configuration

Integrated Automation Control System (rack type or module):
  • Equipped with a control computer with sufficient data processing capability to connect to the chassis dynamometer and power analyzer
  • SCT, MCT, SMCT, and SMCT+ driving modes or cycles should be connected to Driver's Aids and transmitted automatically when selected by users
  • Record and store all data generated during the test process. Automatically calculate results upon completion of selected test procedure

Minimal Specifications (Customizable):

Power Supply: 380/220 Vac (Adjustable)

Rated Output: 120 kW (max 200A/ nominal 600VDC)

Voltage Range: 30~800VDC

Communication Protocol: LAN, filtering signal noise methods are included

External Storage: Equipped with USB memory for data storage

Operating Temperature: -20°C to 45°C

Test Results Data Management:

Data Storage and Recording: All parameters specified in domestic and international testing standards should be easily accessible to users. Environmental measurements (temperature, humidity, etc.) during the test can be recorded and reflected in final-results.

Test Reports: User-requested report formats can be incorporated, enabling automatic generation and printing of final reports with calculated measurement data after completion of tests.

4

Specifications

Downloads

Related technologies

View all technologies
No items found.

Related Projects

View all Projects
No items found.

Contact us

Do you have any questions?

Let us know your inquiry so that our representative can respond to you promptly.
Find your solution