Continental launches advanced sensor solutions designed to further increase control to reduce engine emissions

To make modern direct injection (DI) combustion engines meet strict emission regulations, higher levels of exhaust aftertreatment are an indispensable and important condition: converting nitrogen oxides (NOx) into harmless substances and from the exhaust stream. Filtering out gasoline and diesel particulate matter (PM) is a core function of the car. Continental has recently introduced advanced sensor solutions designed to further enhance control, enabling exhaust aftertreatment to meet vehicle emission standards in China and around the world. The post-processing system is equipped with Continental's intelligent high temperature sensor (HTS) and differential pressure sensor (DPS) for fast response and high precision measurement. At present, intelligent high temperature sensors are now in the second generation, helping customers save system cost and manpower.

Mr. Fan Mingxiang, Sales Director of Continental's Sensors and Actuators business unit in China, said: [From a global perspective, the post-processing market is a promising market, and we have seen China's particularly strong demand. To meet these needs, Continental continues to We are developing new technologies to reduce emissions. We are proud to be able to deliver our second generation of high temperature sensors and differential pressure sensors to the Chinese market to help our customers meet emission standards reliably and efficiently."
Intelligent High Temperature Sensors (HTS) The currently established diesel exhaust cleaning method requires a diesel particulate filter (DPF), a diesel oxidation catalyst (DOC), and a selective catalytic reduction (SCR) unit for the conversion of nitrogen oxides. Complex post-processing will be monitored throughout to ensure the highest conversion efficiency and filtration efficiency are maintained at all times.

The use of a gasoline particulate filter (GPF) is also advantageous for direct injection gasoline engines. The sensor provides critical data for emissions control. Continental's intelligent high temperature sensors detect temperature in the exhaust system from different locations. Since the aftertreatment system can only work at the right temperature level, it is important to confirm the temperature. To ensure optimal emissions control, temperature collection needs to be fast and accurate. Continental's second generation of high temperature sensors are tailored to meet these goals. It is based on thermocouple technology that converts temperature into an accurate digital signal and forwards it to the engine control unit (ECU) for optimal catalytic conversion and on-board diagnostics. In addition to providing critical data, high temperature sensors simplify system layout with multiple sensor probes for close monitoring. In addition, high temperature sensors can be used to provide overheat protection for critical components such as turbochargers. Continental's second-generation high-temperature sensor has been in production in Changchun, China since 2016.
Differential Pressure Sensor (DPS) Gasoline Direct Injection (GDI) engines have good fuel economy and can effectively reduce carbon dioxide emissions. However, the quality and quantity of particulate matter (PM) emitted by gasoline direct injection engines is significantly higher than that of valve-type fuel injection gasoline engines. The function of the gasoline particulate filter and the differential pressure sensor is to remove particulate matter or soot from the exhaust gas of the gasoline/diesel engine. Continental's particulate filter differential pressure sensor (PFD) can be used to infer the flow of exhaust gas through a gasoline/diesel particulate filter using the differential pressure in the measuring filter. This technology will provide an analog or digital output voltage proportional to the differential pressure across the filter. At a predetermined pressure increment, the engine control unit initiates a regeneration process to remove particulate matter accumulated in the filter and restore exhaust gas flow.

Mr. Fan Mingxiang added: [The sensor and actuator team of Continental Group has strong strength in the production and R&D of these two products. I believe that the local team will be dedicated to providing complementary services to local customers."