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    • 5. 发明专利
    • DE3519406C2
    • 1993-02-11
    • DE3519406
    • 1985-05-30
    • HONDA GIKEN KOGYO K.K., TOKIO/TOKYO, JP
    • HASEGAWA, SHUMPEI, NIIZA, SAITAMA, JP
    • F02B31/02F02B3/06F02B31/00F02F1/42
    • An intake system for a direct fuel injection diesel engine is disclosed which has a cylinder block with a cylinder slidingly receiving a piston. A cylinder head is mounted on the cylinder block, and a fuel injector is adapted to directly inject fuel into a combustion chamber formed between the lower side of the cylinder head and the upper side of the piston, wherein the cylinder head has first and second intake passages which are independent of each other and which are adapted to introduce air into the combustion chamber. The first intake passage is oriented substantially tangentially to the combustion chamber and substantially orthogonally to the axis of the cylinder, and has a helical end portion opening into the combustion chamber to form a swirl of air flowing therethrough. The second intake passage is oriented such that the end portion thereof, adjacent the combustion chamber, is closer to the central axis of the cylinder than the end portion of the first intake passage adjacent the combustion chamber. The second intake passage is provided with an intake controller which prevents air from flowing in the second intake passage at low engine speeds but allows air to flow in the second intake passage at high engine speeds.
    • 6. 发明专利
    • DE2901740C2
    • 1993-01-28
    • DE2901740
    • 1979-01-17
    • HONDA GIKEN KOGYO K.K., TOKIO/TOKYO, JP
    • SATO, MAKOTO, KAMIFUKUOKA, SAITAMA, JPOHMORI, TAIJITSUCHIYA, YOSHIKAZU, KAWAGOE, SAITAMA, JP
    • B60T8/1761B60T8/40B60T8/64B60T8/66B60T8/70
    • A method of preventing wheels of a vehicle from skidding, including the steps of detecting the peripheral speed of a wheel and picking it up as a wheel-speed signal, detecting the vehicle speed and setting a reference wheel-speed signal based on the detected vehicle speed, deriving a wheel-acceleration signal from said wheel-speed signal, and setting a reference wheel-deceleration signal for comparison with said wheel-acceleration signal. During braking operation, the brake torque applied to the wheel is controlled such that it is maintained constant to prevent the further increase thereof when the level of the wheel-accleration signal decreases below the level of said wheel-deceleration signal under the condition that the level of said wheel-speed signal is higher than that of said reference wheel-speed signal. On the other hand, if the level of said wheel-speed signal is lower than that of said reference wheel-speed signal, the brake torque is reduced when the level of said wheel-acceleration signal decreases below the level of said reference wheel-deceleration signal. Preferably, in order to make much finer and more accurate control over the brake torque, various reference signals are set for comparison with said vehicle-speed signal, said wheel speed signal and said wheel-acceleration signal, and logical judgements are made on the respective signals. In addition, peripheral speeds of a plurality of wheels are preferably detected and the greatest peripheral speed thereof is used for estimation of said vehicle speed.