Thanks to the close collaboration among various departments at North Mercedes-Benz Company and the strong support from Weichai engine technicians, the first baby carriage of the iron carriage compatible with the Euro III engine has officially rolled off the production line and passed all tests smoothly. The successful calibration of the engine performance by Weichai Engine Factory experts reflects the company’s proactive response to national regulatory requirements and its commitment to independent innovation.
Environmental protection and energy conservation have become key components of the country's 11th Five-Year Plan. The government has continuously introduced stricter regulations on vehicle emissions and noise levels, particularly under GB17691-2005v1. Standards for compression-ignition and gas-fueled engines, as well as vehicle exhaust emissions, have been released. Cities such as Beijing, Shanghai, and Guangzhou now require that vehicles sold and registered locally meet Euro III emission standards. This demand poses a significant challenge for all vehicle manufacturers.
To meet these new requirements, starting in April 2005, Chongqing Company formed a dedicated project team to thoroughly investigate the development status of Euro III engines and begin preparations for future technology development. As a strategic partner, Weichai Power played a crucial role in the integration of Euro III engines into Tiema Automobiles. From both a market and technical perspective, we intensified our efforts to match Weichai's Euro III engines. On the market side, sales teams actively promoted the product, gaining user trust and support. Technically, we strengthened communication with Weichai, conducted extensive training, and deeply studied the matching points of the Euro III diesel engine. We discussed ECU controller installation, external circuit matching, and wiring harness connections. Attention was given to every detail, including connector selection and control switch placement on the instrument panel, ensuring each step was carefully executed. Every design element was reviewed and checked at multiple levels, resulting in a meticulously developed Euro III engine.
With the support of the Health, Distribution, and Quality Assurance departments, all spare parts needed for prototype trial production were ready by August 1, 2006, and installed by August 2. All departments of Chongqing Company took the project seriously and fully participated in the trial production. Weichai experts were present at the assembly site, while technical designers worked closely with workshop staff, comparing design drawings with production processes. Operators and personnel jointly verified the assembly quality and documented details on-site.
Currently, the prototype has successfully passed testing and road trials, with engine performance meeting design specifications. User satisfaction led to the signing of a contract for 20 units, marking the first implementation of this order. This achievement highlights the company's ability to adapt, innovate, and deliver high-quality products in line with evolving environmental standards.
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