Nanjing Huamin Electronics Co., Ltd. ventured into the automotive electronics sector in 1995, participating in the development process from the research and development of domestic automotive electronic ignition systems in the 1990s to the supporting development of Euro II, Euro III, and Euro IV emission systems. Huamin adheres to the corporate philosophy of "professionalism, quality, efficiency, and benefit", with a focus on customers. It provides sensors and derivative products for engines, transmissions, chassis, diesel filters, and other systems to domestic and international customers. Its stable and reliable quality, as well as timely and effective response, have earned it high praise and trust from numerous customers.

After several years of development, our company has had three main series of products, which are automotive sensor, electrical control instrument, and controller. Now we can produce hundreds of automotive electronic products, our annual output can reach millions of sets.

Our company has the self-development capacity of automotive electronic products, manufacturing ability of SMT processing, assembly and debugging, packaging, testing, etc, and research, development & self-manufacturing capacity of special test equipments. Our company has established GB/T19001-2000 quality management system as early as 2002. Then in 2006, in accordance with the special requirements of the international automotive industry supply chain, we established ISO/TS16949 quality management system. Furthermore, we passed NQA certification in 2007.

The main automotive electronic product series which have been put into production are showed as follows:

Including speedometer, odometer, fuel gauge, coolant temperature gauge, LCD milemeter, LCD clock, plenty of LED signal lamps, etc. Our meters use veneer integrated structure, 4 pointer gauges use all-digital stepper motor driver. Meanwhile,the board also integrates K-bus, in order to support online configuration and diagnostic functions.

Sensor

Speed Sensor & Position Sensor

Our speed sensor and position sensor are used as the key parts in the engine system and chassis system. We have a complete product line of these two types of sensors, which are based on the principle of Hall effect, magneto-electric type, opto-electronic type, eddy-current type, etc. These sensors are used for detecting the speed signal of the parts of the crankshaft, camshaft, transmission gear box, ABS system, speedmeter, etc.

Water Sensor for Diesel Filter

This type of sensor is used for the oil-water separator detection of the diesel filter initial filter system. It is an essential part for diesel engine to meet the Euro III and above emission standard requirements.

Pressure Sensor

Our pressure sensor is used to detect the vacuity of the engine’s intake manifold. It is an important sensor for electronic fuel injection system.

Gear Sensor for Automatic Transmission

This type of sensor is an electromechanical product for automatic transmission cotrolling. The sensor collects the timely gear position information of the automatic transmission, and then transforms the information into 9-group-4-bit Gray code digital signal, which corresponds to the gear position,exactly and reliably. Our products belong to the first creation domestically, and reach international advanced levels.

Controller

We have several types of products, such as overspeed alarm, speed ratio regulator, etc.

The automatic transmission digital gear sensor, fully-integrated digital automobile instrument, and water detection sensor for diesel filter have been identified as high-tech products in Jiangsu Province.