Heavy Duty Chassis Dynamometer

Dynamometer for Emissions, Performance, Climatic and NVH Tests

HORIBA has a long tradition in planning and producing Heavy-Duty Chassis Dynamometers. We cover all important application areas like emissions, performance, climatic and NVH. The systems have standard interfaces to the HORIBA emission systems and so form part of the total emissions solution from HORIBA.

Our automation systems in combination with the long lasting and low maintenance dynamometers are able to check trucks and buses on all important US Heavy-Duty Vehicle Test Cycles.

Features
Specifications

Chassis Dynamometer EMDY 72 includes mechanical, electrical and control equipment to provide road-equivalent loading for trucks and other vehicles such as single-axle transit buses, dual live-axle Class 7 and 8 type and highway trucks. This system, along with emissions test equipment, are the primary elements in the analysis of exhaust from heavy-duty vehicles operating on diesel fuel, natural gas, liquefied petroleum gas (propane), methanol, ethanol, gasoline and blends of fuels. Of course it allows testing of the entire vehicle or multiple vehicle components under consistent and defined test conditions. By that, you gain a reduction of road testing risks and costs.

Applications

Heavy-duty diesel transient exhaust emission testing
Medium duty diesel transient exhaust emission testing
For vehicles with Single or Tandem Live Axles
ARB 2007 Diesel Engine Standards
Fleet Exhaust Emissions Management

Benefits

Allows consistent and defined test conditions
Advanced drive technology to minimize facility electrical impact
Full tractive effort available through integrated loading device
Accommodates Tandem Live Axles with automated lift system
Augmented electronic braking to ensure drive cycle adherence
Expandable LAN network for in-vehicle data sampling
Regenerative drive to recover generated power
Integrated control platform for minimal operator interfaces to emissions and dyno
Software to track fleet performance

Covering the whole range:

Emissions, Performance, Climatic, NVH
Sizes: 72" ; 75"; 120";
Modules: 2WD; 4WD; AWD; 8X8 & Special
Turn Key Systems ( Heavy Duty )

Heavy Duty Emission Dyno Advantages:

Extensive Experience in Heavy Duty applications
Standard Interface to Emission Systems
Precise Controls of Dynamometer System
Long Lasting, Low Maintenance Dynamometers
Multiple Use of Dynamometer
Modular Systems Available

US Heavy Duty Vehicle Test Cycles

Urban Dynamometer Driving Schedule (UDDS)
- EPA transient chassis dynamometer test cycle for heavy-duty vehicles.
Central Business District (CBD)
- Transient chassis dynamometer test cycle for heavy-duty vehicles.
Business Arterial Commuter (BAC)
- A composite heavy-duty vehicles fuel economy cycle, also known as the Transit Coach Operating Duty Cycle.
City Suburban Cycle & Route (CSC)
- Chassis dynamometer test cycle for heavy-duty vehicles.
New York Composite
- Transient chassis dynamometer test cycle for heavy-duty vehicles.
New York Bus (NYBus)
- Transient chassis dynamometer test cycle for urban transit buses.
Manhattan Bus Cycle
- Transient chassis dynamometer test cycle for urban transit buses.
Orange County Bus Cycle
- Chassis dynamometer test cycle for transit buses developed by the West Virginia University.
WVU 5-Peak
- 5-speed chassis dynamometer test cycle for heavy-duty trucks developed by the West Virginia University.

Key Features of HD-Dyno

Available Roll HD-Modules ( 41",48", 72"; 75"; 120")
One Motor Base Module
Scalable Absorber Dyno. >> Up to 260,000 N
Modular Floor structure
Multiple use (Emissions, Performance, Climatic)
Covers Class 6/7/8 Trucks and Off-Road Vehicle
Standard Roll surface of 0.8 m.
Easier Installation of HD Dynamometer
Deadweight Calibration ( Certification purpose ) or comfortable , one-man, proving ring calibration (Verification purpose).
Optimum tire patch for Emission Testing
Standard Roll width and spacing accommodates 90% of Dual-Axle and Twin-Tires Vehicles
Remote Control setup system
- Optional available Pull Down Device up to 25 t, for variable simulation of trailer loading
- Optional available Fast Data Acquisition System (1 kHz / Channel)
- Optional available Heavy Duty Autopilot ( accommodates manual and automatic shifting )
- Optional available Drivers-Aid Tablet System

Technical Information:

Accommodate Dual Axle Specimen on same unit.
Emission and Performance in one unit
Fulfill HD Chassis Emission laws
Pull Down Forces of 25,000 t
Dead-weight or Proving Ring Calibration

Heavy Duty Chassis Dyno

Dynamometer for Emissions, Performance, Climatic and NVH Tests

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