1. Name of the results

Suzhou Aoke Si 48V weak mixing system electronic control system.

2. Introduction to the results

The results can be applied to the 48V mild hybrid vehicle control. According to the requirements of the fourth phase of the country's fuel consumption regulations to be implemented by 2020, the fuel consumption of passenger cars sold in China's market will drop by 30% by 2020 to 5L. This requirement is simply through the engine and gearbox technology upgrades have been difficult to achieve, must be combined with hybrid technology. The 48V weak mixing system is the most economical way to achieve this goal by simply adding a 48V battery to the vehicle and replacing the traditional starter with an enhanced motor. The typical structure is shown in the following figure:

The advantages of the 482 weak mixing technology are: a) less on the original vehicle, low cost; b) fuel economy up to 12 ~ 15%, is to meet the four-stage fuel consumption regulations of the most economical technical route; c) due to the elimination of the engine low D) due to the introduction of the 48V system, for the vehicle to provide a good foundation for transformation, can be easily added to the electric steering power, electronic pumps, electric air conditioning and other electronic accessories, so the vehicle NVH performance significantly improved than the start and stop system;

Suzhou Aoke has developed a perfect 48V weak mixed system control system, with the following features:

● start conditions, BSG motor in a short time to accelerate the engine to idle speed above, and then the gasoline engine to work;

● parking conditions, ECU automatically cut off the engine ignition system, the engine is in the flame state;

● deceleration conditions, the driver depress the brake pedal, power generation start one motor will slow down the kinetic energy into electrical energy and stored up;

● taxiing conditions, motor-assisted vehicle taxi, increase the taxi distance;

● normal driving conditions, the engine work properly;

● start boost, the vehicle is in the starting state, the power generation start one opportunity to help the engine or a short time to replace the engine to start;

● mixed drive conditions, start conditions to the normal driving conditions of the transition process. At present, our company has completed cooperation with the Wuling Liu machine 48V weak mixed system prototype of the trial, ongoing vehicle matching debugging, the relevant patents are being prepared.

3. The results of innovation and difficult to solve the problem

The main innovation of the results is: a) it is the first independent intellectual property rights of 48V weak hybrid system electronic control system, and has completed the prototype prototype, close to the production status; b) it integrates in an ECU engine management System and 48V weak mixed management system two sets of systems, high integration, low cost, vehicle modification is simple.

In the process of car matching, the most important problem encountered is the control accuracy of the motor. As the domestic development of new energy vehicles, focusing on pure electric vehicles and deep hybrid cars, and these two types of cars need high-power motor, so the market for optional 48V system for the use of a small number of low-power motor, Performance is relatively poor, mainly torque output is not accurate and stable, will lead to vehicle driving process to produce a clear move. In view of this problem, our company technical personnel on the motor output characteristics of a detailed measurement and modeling, and the development of the corresponding shaping algorithm, according to the actual output characteristics of the motor, the original torque requirements in real time to adjust, so as to ensure accurate motor, Smooth output of desired torque. After the application of the algorithm, the performance is good.

4. International level comparative analysis

New energy vehicles in the country are new things, the level of development of countries roughly the same. The overall level of the results and foreign similar products roughly the same, but the motor torque shaping algorithm for the international initiative, and has a good versatility, fast calculation, high precision, can greatly improve the vehicle's driving comfort, is the international leader Technology.

5. Application of results

The results have reached a strategic cooperation agreement with Wuling Liu machine, Wuling Liu machine future mass production of 48V powertrain (including the engine, 48V motor and assembly control system) will carry the results. With the implementation of the four-stage fuel consumption regulations, the results will have a broad application prospects.

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 ECU equipment The production capacity.

7. Analysis of social and economic benefits

According to the four-stage fuel consumption regulations, by 2020, China's sales of passenger fuel consumption needs to drop to about 100 km 5L. To achieve this goal, the new car basically need to equip 48V weak mixed system. China's current annual sales of passenger cars for the 20 million or so, the corresponding 48V weak hybrid system of electronic control products market size of about 40 billion yuan. The social benefits of the results are mainly reflected in:

1) The results of our country to master the international synchronization of 48V weak hybrid electric 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 in the healthy development of favorable, can also be avoided New energy vehicles in the field of electric control again 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 top ten breakthroughs in the manufacturing 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.

5) The results for the domestic car enterprises to provide a four-stage fuel consumption to meet the key technologies for the smooth implementation of fuel regulations, the domestic car prices sustainable development, the overall energy-saving emission reduction industry, providing a guarantee.