The Shanghai Motor Vehicle Testing Center recently released a test report on Nexteer Electric Power Steering System (EPS). Through trials, Nexteer EPS has proven to be effective in providing better fuel economy and reducing pollutant emissions. The Shanghai Motor Vehicle Testing Center carried out the discharge of exhaust pollutants and fuel after the cold start of the light vehicle at room temperature by replacing the EPS provided by Nexteer (including the electric steering column, the electric column intermediate shaft, and the mechanical steering machine) on the vehicle. Consumption test Two sets of test items. The test used a 1.2L small displacement MPV of a well-known automobile manufacturer mainly producing small cars. According to the "Light Vehicle Pollutant Emission Limits and Measurement Methods" and "Light Vehicle Fuel Consumption Test Methods", the data of exhaust pollutants and fuel consumption are tested. The small displacement MPV originally used a hydraulic power steering system (HPS), and after replacement, the Nexteer EPS was used. In the exhaust pollutant discharge experiment, the emissions of three kinds of exhaust pollutants such as CO, HC and NOX were detected after each kilometer of driving. After testing, the emissions of CO, HC and NOX were effectively reduced by light vehicles with the EPS provided by Nexteer, which decreased by 6.5%, 14.5% and 15.6% respectively. In order to be able to obtain the test results more objectively, according to the standard of GB/T 19233-2008, the fuel consumption test was carried out on the conversion test bench in the urban, suburban and comprehensive driving environment. Compared to HPS, the use of Nexteer EPS can save about 4.2% of fuel consumption per 100 kilometers, about 0.33 liters. EPS is a power steering system that relies directly on the motor to provide auxiliary torque. Compared with HPS, EPS completely eliminates the power steering oil pump, hose, hydraulic oil, conveyor belt and pulley mounted on the engine that HPS needs. There is almost no need to change the power of maintenance oil and check the pipeline and valve. More importantly, it is completely unaffected by the engine speed. At low speeds, the boost can be larger. At high speeds, it can reduce the speed or even not work, saving fuel consumption, reducing pollutant emissions, and greatly improving. The comfort and safety of the vehicle. It is with these advantages that EPS has become the development direction of automotive steering systems. “In 1999, Nexteer became the first company to introduce an electric power steering system (EPS) for the automotive industry.†Mr. Liu Tao, vice president and chief operating officer of Next Division, said: “With our rich Steering system design, programming and production expertise, we provide world-class products for safety, functionality and comfort for world-renowned automakers such as BMW, Volkswagen, Fiat and Electrolux, and are working hard to help They have transitioned from hydraulic power steering systems to electric power steering systems." Concerned about surprises Label: Fuel economy and environmental protection of electric power steering (EPS) Previous: Analysis of the advantages of commercial concrete mixing plant Next: The material of the bolts, screws and studs of the Knowledge Lecture Hall
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