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4-wheel Chassis Dynamometer
WEB-4WCDY

This system replicates road driving conditions and allows for highly accurate evaluation of various performance aspects of four-wheeled vehicles. It can accommodate a wide range of vehicles (2WD, 4WD, EV, HEV) and supports various tests, including exhaust gas and fuel efficiency tests, environmental tests, and electric vehicle energy efficiency tests. Furthermore, its highly efficient vehicle restraint system ensures excellent reproducibility and provides stable test results. Applications compliant with a wide range of regulations, including CFR1066, SAEJ2951, and JASOE014 evaluations, are available.
It complies with the emission testing regulations of each country and region. USA: EPA Europe: GTR Japan: TRIAS

System Configurations

Measurement system

  • Measurement system

Equipment configuration

Example specifications (for exhaust gas testing) *We also manufacture various types such as 4WD and mechanical inertia type upon request.

Target vehicles Vehicle type FF, FR
Laura diameter 1,219.2 mm (48 inches)
Width 2,300 mm (650 mm-1,000 mm-650 mm)
dynamometer kinds AC dynamometer
Continuous rating Absorption) 150 kW/100-200 km/h
(Drive) 110 kW / 100-200 km/h
Oscillating method Hydraulic levitation system
Torque detector High-precision load cell
inertia compensation method Full electrical inertia compensation
Equivalent inertia compensation range 454-2,721 kg (1,000-6,000 lbs.)
Mechanical fixed inertia, Electrical inertia range 1,361 kg (3,000 lbs.) -907 to +1,360 kg

Case Studies

Evaluation test application compliant with CFR1066 standard

Automated operation enables various evaluation and test runs in accordance with the CFR1066 standard.

  • Example of evaluation test execution screen 1
    Example of evaluation test execution screen 1
  • Example Screen for Evaluation Test Execution 2: History Management, Printing Function, Data Output to Excel
    Example Screen for Evaluation Test Execution 2: History Management, Printing Function, Data Output to Excel

ExFlower, a bench testing support application, now includes chassis parts. This increases the flexibility of testing and automates periodic equipment evaluation checks.

Mode operation evaluation and analysis application

It is possible to display, analyze, and manage the history of mode operation indicators compliant with the SAE J2951 standard.

  • Mode operation evaluation and analysis application
    Screen example

Dynamo control evaluation application

It enables performance evaluation, analysis, and history management of electric inertia chassis dynamometers compliant with the JASO E014 standard.

  • Dynamo control evaluation application
    Screen example

Related Products

Driver's display

Driver's display

Includes a function to switch between the measurement screen and the driver's aid screen.

The measurement screen displays various measurement data to the driver, assisting with driving operations by allowing them to check the driving status.

Vehicle restraint device (semi-automatic)

Vehicle restraint device (semi-automatic)

No special modifications are required for the test vehicle.
The same method can be used to restrain any test vehicle.
This constraint allows for safe mode operation.
The reproducibility of test results can be easily obtained.
It can be done in a short amount of time, and anyone can be held in the same position.

Automatic weighing device

Automatic weighing device

Remote operation enables automatic dynamo torque calibration.

Vehicle cooling fan

Vehicle cooling fan

Vehicle speed-following type / manual type

Type: Centrifugal fan, axial fan, etc.

Forward/backward movement method: Manual or electric

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