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Powertrain Control Systems

Development and production of gasoline and diesel engine control systems and related products, hybrid and electric car products, powertrain products, and power supply and starting system parts such as alternators and starters

Fiscal 2014 Topics

New Products and Technologies

Developed a new diesel common rail (DCR) fuel injection system with the world's highest level of injection pressure at 2,500 bars. Compared with the Company's previous 2,000 bar system, the new system can help increase fuel efficiency by up to 3% while also reducing hazardous substance particulate matter (PM) by up to 50% and nitrogen oxides (NOx) by up to 8%, contributing to lower fuel costs and less environmental impact. The new DCR fuel injection system is part of Volvo's new Drive-E powertrains in Europe.

Honored with the 2013 Nikkei Excellent Products & Services Award for Excellence in recognition of the intelligent-Accuracy Refinement Technology (i-ART) feedback injection control system, a computer that controls common rail systems. The i-ART feedback injection control system controls fuel injection precision to within 1mm3 in volume and 1 / 100,000 of a second in timing. The Toyota Hilux, launched in Brazil in 2012, was the first mass production vehicle featuring i-ART to greet the world. The awards recognize the technological development, growth potential, innovativeness, and industry/social impact of the i-ART feedback injection control system.

Developed an exhaust gas recirculation (EGR) valve unit, a major component of EGR systems that helps make diesel engine emissions cleaner. The new unit, the first in the world to integrate an air intake throttle valve and an EGR valve, which are usually installed separately in vehicles, is half the size of conventional models and reduces costs by 20%. The air intake throttle valve controls the amount of air entering the engine and the EGR valve controls the amount of exhaust gas to be recirculated into the engine.

Business Expansion and New Companies

Established a production company in Cambodia, the Company's first presence there, as part of efforts to enhance the production and supply framework in the ASEAN region. In July 2013, production of sensor components for ignition magnetos (starters for motorcycles) commenced. Plans call for steadily expanding production to other products.

Built an evaluation facility to strengthen the development of power electronics products, such as inverters used in hybrid vehicles worldwide, on the site of the Anjo Plant. The facility began participating in the development and evaluation of these products in April 2014.

Decided to expand operations at the DENSO Mexico S.A. de C.V. (DNMX) manufacturing facility in Silao in order to meet expanding production of automobiles in Mexico. The Company will put in place a new manufacturing line for alternators with production scheduled to commence from October 2014. Construction on the Silao Plant, the third for DNMX, broke ground in March 2012. The plant started manufacturing heating, ventilation and air conditioning (HVAC) units in November 2013 and radiators and washer systems in January 2014.

Commenced production at a third newly constructed plant at PT. DENSO INDONESIA in February 2014, in order to keep pace with expanding automobile production in Indonesia. The new plant produces engine control products, including engine electronic control units (ECUs) and variable cam timing (VCT) control systems, as well as starters and alternators.

Sales expanded for inverters used in hybrid vehicles made by Nissan Motor Co., Ltd. (Pathfinder) and Mazda Motor Corporation (Axela).

Results for Fiscal 2014 and Growth Strategies

  FY2014 FY2013 Change YoY
Sales (Billions of yen) 1,433.4 1,238.2 +15.8%

In fiscal 2014, sales increased considerably compared with the previous fiscal year, buoyed by a higher production volume at Japanese automakers and a recovery in China.

In fiscal 2015, to meet environmental regulations around the world, we will provide innovative world-first products that improve internal combustion fuel efficiency. Specifically, we will contribute to greater fuel economy and higher efficiency in internal combustion engines by increasing sales of gasoline direct injection systems and diesel common rail systems. In the field of electric motors, in addition to expanding sales of essential hybrid components such as motor generators and inverters, we will pursue miniaturization and cost reduction in these products. We will also leverage our core technologies and experience in the fields of starters, alternators, engine cooling systems, and semiconductors to develop new products including battery packs that make full use of our proprietary technologies. In aftermarket business for products including iridium plugs, we plan to invest in cost-competitive products suited to market needs and products with our proprietary technology at the core.

Main Products

Engine Control Components

Ignition coils, Magnetos
Spark plugs
Glow plugs
Exhaust gas sensors

Ceramic substrates
Diesel Particulate Filters (DPFs)
Engine ECUs for motorcycles
Exhaust gas temperature sensor

System Control Components

Intake and exhaust products: Exhaust gas recirculation (EGR) valves, Throttle bodies, Integrated air fuel modules, and others
Variable valve products: Variable Cam Timing (VCT) components, Oil flow Control Valve (OCV)
Drive control products: Integrated mechatronic modules, AT solenoid valves, Valve bodies, Shift-by-wire actuators
Evaporator products: Purge valves, Evaporative leak check pump module
Sensors: Knock sensors, Air flow meters, Accelerator Pedal Module (APM)
Filters: Oil filters, Air cleaners

Common rail systems
Common rail systems

Diesel Injection Products

Common rail systems
In-line fuel injection pumps, Rotary fuel injection pumps
Fuel filters

Fuel pump module
Fuel pump module

Gasoline Injection Products

Fuel pumps
Fuel pump modules
Fuel injectors
Direct injection components (Injector, Pump)


Engine Electrical Systems

MG stators

Lithium-ion battery pack


EHV Components

DC-DC converters

Battery monitoring units