We are adopting a dual approach in our effort to make ever-better cars. For both the interiors and exteriors of vehicles, we are engaging in differentiated development for each model that closely matches customers' preferences (section of the diagram shaded in yellow) while working to standardize such basic parts as platforms and components (section of the diagram shaded in pink). By making better products and promoting overall optimization through part sharing, we are supporting the chief engineers who are responsible for vehicle development.
Using a driver's surroundings as an example, we would like to explain our concept of the strategic sharing of parts through grouped development. In putting in place architecture (overall concept for vehicle design and development) that improves basic performance, it is important to determine the optimal driving position from the driver's perspective. With this in mind, we redefined the optimal driving position in terms of six criteria, including operating posture and seat position. Based on these criteria, we categorized hip height into five groupings based on hip points.
Based on this architecture, the parts surrounding the driver, including seat frames, seat pads, shift levers, and parking pedals, are strategically shared across platforms and models. Product selection scenarios are then put in place for each part.
By pushing forward TNGA initiatives and engaging in smarter car manufacturing, Toyota is working to reduce its use of development resources by 20% or more. Increased efficiencies are, in turn, helping to free up funds, which will be reinvested in areas aimed at making ever-better cars and in advanced technologies for sustainable growth.
Toyota will newly develop and strategically share functional parts that determine basic performance, including those installed in the driver's immediate environment. These parts are referred to as TNGA parts. Also, because the strategic sharing of TNGA parts and components allows multiple platforms and powertrain components to be added to lines for mixed production, Toyota will be better positioned to respond flexibly to changes in demand and to achieve significant reductions in overall production line investment.