摘要:
A vehicle control system obtains an index indicating a running condition of a vehicle on the basis of a vehicle parameter indicating a motion of the vehicle and then sets a running characteristic of the vehicle in accordance with the index. The vehicle control system includes a noise reduction unit that is configured to obtain the index on the basis of the vehicle parameter of which a fluctuating component that fluctuates because of a driver's driving operation or the influence of a running road surface.
摘要:
A vehicle control system, which is configured to obtain an index on the basis of a running condition of a vehicle and to change at least any one of a driving force control characteristic and a vehicle body support characteristic of a suspension mechanism in response to the index, is configured to acquire information associated with a friction coefficient of a road surface on which the vehicle runs, and to correct the at least any one of the driving force control characteristic and the vehicle body support characteristic, which is changed in response to the index, on the basis of the information associated with the friction coefficient of the road surface.
摘要:
A vehicle control system obtains an index indicating a running condition of a vehicle on the basis of a vehicle parameter indicating a motion of the vehicle and then sets a running characteristic of the vehicle in accordance with the index. The vehicle control system includes a noise reduction unit that is configured to obtain the index on the basis of the vehicle parameter of which a fluctuating component that fluctuates because of a driver's driving operation or the influence of a running road surface.
摘要:
In a vehicle control system, an index used to set a running characteristic of a vehicle is obtained based on a running condition of the vehicle. A change of the index that makes behavior of the vehicle crisper is more likely to occur than a change of the index that makes the behavior of the vehicle milder. When it is determined that the vehicle is in a turning condition, the change of the index or a change of the miming characteristic based on the index is less likely to occur than when it is determined that the vehicle is not in the turning condition.
摘要:
A serial interface circuit includes a plurality of serial transmitters for a plurality of channels, respectively; and a plurality of serial receivers provided for said plurality of channels and connected with said plurality of serial transmitters, respectively. Each of said plurality of serial transmitters transmits a serial signal. Each of said plurality of serial receivers includes a receiver circuit configured to convert the serial signal into a data sequence; n (n is an integer more than 1) register groups configured to shift the data sequence; a data processing circuit configured to perform a data process on said data sequence based on n outputs of said n register groups and a detection result; and a header detecting circuit configured to detect a header of the data sequence when said b register groups from a first register group to a bth register group among said n register groups shift the data sequence, and to output the detecting result to said data processing circuit.
摘要:
An object of the present invention is to improve the easiness of steadily maintaining the magnitude of treading on a foot-operated operating element, such as an accelerator pedal, while mitigating a feeling of treading on a wall at the time of start of treading on the operating element and an odd feeling at the time of easing off the operating element. A pedal-operated operation device includes a pedal arm, a support housing, a spring for urging the pedal arm in a direction of return, and a first shim and a second shim for generating a first resistance force and a second resistance force, respectively, against the relative pivotal movement of the pedal arm. A frictional engagement portion of the second shim is higher in maximum static friction force than a frictional engagement portion of the first shim. The second shim has a region in which the elastic modulus of the second elastic deformation portion is lower than that of the first shim, in terms of elastic deformation at the time when the pedal arm moves relative to the support housing.
摘要:
In a vehicle driveability evaluation system, an engine is coupled to a dynamic dynamometer which is capable of changing a load torque and a speed in a very short time. A control unit controls the dynamic dynamometer so that the load torque and the speed of the dynamometer simulate the load and the speed of the engine when it is mounted on an actual vehicle. The driveability evaluation test is performed by operating the engine while simulating various running conditions of the vehicle by the dynamic dynamometer. Engine operating parameters such as an engine speed and an output torque are converted by a driveability data generating unit into driveability data such as an acceleration and vibration of the vehicle in accordance with the characteristic of the vehicle. These driveability data are converted by a sense-data generating unit into stimuli such as visual images, sounds and forces which can be directly perceived by the human senses. Therefore, an inspector can directly perceive the driveability of the actual vehicle from the stimuli generated by the sense-data generating unit without actually mounting the engine in the vehicle body.
摘要:
A two-stroke internal combustion engine comprising a cylinder head 14 having intake valves 20 and exhaust valves 22 arranged therein. A supercharger 42 is arranged in an intake pipe 44 and a tank 46 is mounted downstream of the supercharger 42. A valve 48 is arranged in an opening between the tank 46 and the pipe 44. From the pipe b 44, two intake manifolds 30 and 32 are branched, with respective branch pipes connected to the respective intake ports 24. An intake control valve 50 is arranged in one of the manifold 32, which closes at idling and under a low load of the engine. The engine further has means for generating a swirl S about an axis of the combustion chamber 18 by a portion of exhaust gas caused to flow back from the exhaust port 26 into the combustion chamber 18 after being once exhausted through the exhaust port when the exhaust valve is open.
摘要:
A two-cycle internal combustion engine comprises a cylinder head having an intake port and exhaust port opened to a combustion chamber, to which compressed fresh air is introduced via an intake valve. The intake and exhaust valves are operated in response to a crank angle. A pulsation pressure of exhaust gas in the exhaust port is substantially restrained during an idling or light load running condition. The exhaust valve is opened earlier than the intake valve when the speed of the downward movement of the piston is relatively high, such that a part of exhaust gas in the exhaust port flows back to the combustion chamber in that condition. An exhaust gas swirl rotating around a cylinder axis is formed when the exhaust gas flows back and the fresh air is slowly introduced onto the exhaust gas swirl in that condition.
摘要:
In a double air-fuel sensor system including two air-fuel ratio sensors upstream and downstream of a catalyst converter provided in an exhaust gas passage, a delay operation is performed upon the output of the downstream-side air-fuel ratio sensor, so that the actual air-fuel ratio is adjusted in accordance with the output of the upstream-side air-fuel ratio sensor and the delayed output of the downstream-side air-fuel ratio sensor.