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This paper presents a new Active Control Engine Mount (ACM) that uses adaptive control to improve the quietness of diesel engine vehicles substantially. The ACM has been constructed by incorporating an electromagnetic actuator and a load sensor in a fluid-filled engine mount. A simplified adaptive filter has been achieved by applying the synchronized filtered - X algorithm, focusing on the periodic components of the vibrations induced by engine revolution. As a result, noise and vibration ascribed to a diesel engine are reduced to a level comparable to that of a gasoline engine vehicle for exceptional interior quietness.

The status of the single point electronic fuel injection system technologies are overviewed. The major technological features of the systems which have teen announced or introduced in the market are compared. The merits and the demerits of the various system designs and the components, such as injector position, fuel system pressure, injection nozzle design and sensors are described. The possibilities to improve the air fuel distribution from cylinder to cylinder, the transient response of the engine in the acceleration mode and the stability of the engine revolution during idle with sophisticated control algorythm are demonstrated. The learning control is also very useful to compensate the deterioration of the system or the offset of the control point.

The usefulness of a micro-processor based engine vehicle control system has been demonstrated and widely recognized. With the rapid progress of LSI technology in process and structure, the improvement of micro-processor performance and reliability is remarkable in computing speed, functions, and memory size. By utilizing this improved micro-processor performance, a more sophisticated engine-vehicle control system can be composed. The objective of this study is to clarify the requirements for an engine control unit (ECU) and a control strategy in the case that these systems are applied to smaller engines and smaller vehicles and where high accuracy of control is needed. An experimental control unit has been developed. Both transient and steady state compensation controls for fuel injection and ignition timing have been investigated.

Procedure of rule making in Japan, inspection for new vehicles and vehicles in use are explained. Also introduced is the abstract of Japanese Safety Regulation, Inspection Standard and Type Test Standard. Japanese Automobile Standard Organization and its brake standards is explained, mainly for commercial vehicles. Various regulations and standards are compared to show relative severity and diversion in the idea. Trend in Japanese truck, bus, trailers and their brakes were surveyed with few examples of foundation brake and components.