Chassis dynamometer is used to simulate road driving conditions, indoor test vehicle dynamics, fuel economy (fuel consumption), multi-mode emissions, electric vehicle measurement cruising range, vehicle engine cooling and heat dissipation capabilities and simulation of the continuous vehicle climbing Steep slopes and hills (1-8%), continuous downhill (1-8%) at a constant speed (Type II and Type IIA) tests, etc.
After the chassis dynamometer is equipped with an environmental chamber, the vehicle can perform related vehicle performance test research (high temperature and low temperature) under different environmental conditions. Therefore, the chassis dynamometer is an important piece of equipment in the design and development of the vehicle.
Advantage
●In the laboratory, instead of the proving ground road test
●Dynamically simulate vehicle acceleration resistance, rolling resistance, ramp resistance, and air resistance
● Road cycle tests can be carried out according to typical road conditions
●Power and fuel economy, emissions
●Significantly shorten the test time---Compared with the actual road test and certification field test, it can save a lot of test time
● Good repeatability---precise control strategy and executive mechanism to ensure the accuracy and repeatability of the test process
●Convenient to monitor the state of the vehicle---because it is carried out in the laboratory, the test personnel can observe the changes or damage of the test piece at any time
Test projects:
Traditional vehicle
(1) Fuel consumption test
(2) Study constant velocity fuel consumption under road resistance conditions
(3) Fuel consumption under special conditions (different slopes, different parts)
(4) Research on changes in driving resistance under road resistance conditions (glide resistance, retarder)
(5) Emission calibration test
(6) Comparative test of different configurations of power system
(7) Heat dissipation capacity test of vehicle engine cooling system (heat balance) new energy vehicles
(8) Pure electric cruising range of fuel cell vehicles
(9) Energy consumption test of hybrid electric vehicles
(10) Test methods for energy consumption rate and cruising range of electric vehicles