1. Name of the results

Suzhou Aoke grams of escalator electronic control system (APU-EMS).

2. Introduction to the results

The results can be applied to the control of extended range electric vehicle (REEV) extenders. REEV is a tandem hybrid electric vehicle, its structure is based on pure electric vehicles to add a set of extended range assembly. The extension assembly consists of an engine, a generator (including the generator controller GCU) and a set of electronic control system that can start power generation if necessary to drive the vehicle or to charge the power battery.

REEV has many outstanding advantages, compared with pure electric vehicles, it carries less battery, lower cost, longer driving range (close to the traditional car), low charging facilities, long battery life, is not easy to appear safe problem. Compared with the depth of hybrid cars, REEV no gearbox, do not need dynamic coupling device, simple structure; engine does not directly drive the vehicle, the control system is simple; engine always work in the best working conditions, suitable for small displacement engine, Emissions and economy are better. It is because of these advantages, many people of insight have called for "thirteen five" during the country should vigorously develop the range of electric vehicles. Chinese Academy of Engineering Yang Yusheng many times in the "China Science" published an article on this view. National 863 plan energy-saving and new energy vehicle major project overall expert group leader, Tsinghua University Department of automotive engineering professor Ouyang Minggao also pointed out that the future of China's hybrid system research and development of the main content will be extended range, extended range of hybrid systems, dedicated Engine assembly, electromechanical coupling device, plug-in hybrid system and so on. In the "Made in China 2025" plan, it is also clear that the extended range of electric vehicles is the focus of support.

Suzhou Aokeke Automotive Electronics Co., Ltd. technical team from June 2011 began a range of technology-related technology development, and in February 2012 completed the first extended-range electric vehicle prototype assembly, participated in the The Beijing International Auto Show, became the first batch of domestic development of electric vehicles to increase the electric control system developed one of the team. After several years of development, the company has not only fully grasped the core control strategy of the extended-range electronic control system, but also solved many technical problems in real vehicle matching, including NVH optimization, start control, temperature control, etc. Related patents, including:

3. The results of innovation and difficult to solve the problem The main innovation is that it is the first to achieve mass production level and the control strategy of the most complete range of electronic control system. The results of the product is not a simple principle verification system, which solved the actual vehicle matching process exposed many technical problems, including NVH optimization, starting control and temperature control, etc., also experienced high temperature, plateau, alpine test test, The best balance of power, economy and driving.

The layout of the extended range electric vehicle is completely different from that of the traditional car. The NVH requirements are different from those of the ordinary car. Therefore, the NVH optimization of the extended electric vehicle is not only a new problem but also more difficult. Our technical personnel on the real car running in the process of generating a variety of noise, vibration are carried out in-depth testing and analysis, and put forward effective effective suppression methods, including the engine timing wheel system materials, into the exhaust system, The valve clearance and the balance shaft to optimize the engine body noise, optimize the engine mount scheme to reduce engine vibration, optimize the vehicle control strategy to eliminate resonance noise, and so on.

In the start control, because the extended range of electric vehicles with high-voltage motor to replace the traditional starter, so the need for a number of optimization of the control strategy, such as: the generator torque for more sophisticated control to ensure smooth start of the engine; Turn logic to improve the start to ensure that the starting effect, to avoid shutdown tempering; join the secondary cylinder to ensure that the logic does not occur start tempering, and so on.

4. International level comparative analysis

Thanks to the early start of the development work, the actual experience of the match is sufficient, the results in the hardware platform advanced, software control strategy perfection, environmental adaptability, quality and other aspects of stability, far more than other similar domestic systems, and Foreign similar products at the same level.

5. Application of results

The results have been applied to a number of domestic customers, including FAW Pentium, Geely Automobile, Beiqi new energy, in the plant bus, Yangzhou Yaxing, Sichuan steam Mustang, Han Teng car, Wuling Liu machine, and to achieve mass production and sales.

6. Results of the capacity of the construction

At present, the company has built two domestic most advanced automotive electronic control system production line, production equipment, production technology and production processes and international companies the same level, reasonable staffing, adequate supply of raw materials, stable, with an annual output of 200,000 sets of production ability.

The social benefits of the results are mainly reflected in:

1) The results of our country to master the international synchronization of the extended range of electric vehicle electronic control system core technology to enhance China's new energy automotive industry, the overall level of technology and independent innovation capability of China's new energy automotive industry is conducive to the healthy development, Can avoid the re-emergence of new energy vehicles in the field of electric control by foreign companies monopoly situation.

2) After the application of the results of promotion, is conducive to the overall social energy conservation, is conducive to the country's green, sustainable development.

3) After the application of this achievement, it is helpful to reduce the total demand of petroleum vehicles to reduce the dependence of petroleum resources and alleviate energy security.

4) The automobile industry is the leader of the real economy. The new energy vehicle is the development direction of the automobile industry. It is also one of the seven strategic emerging industries established by the state, and one of the ten breakthroughs to build the power industry. Control system core technology breakthrough for the smooth implementation of the national strategy favorable for the entire national economy to enhance the role is also very obvious.