摘要:
In a steering damper utilizing hydraulic pressure, even if generation of a damping force is controlled in correspondence with an external force inputted to a handle upon external perturbations and the like, the damping force changes due to change in liquid temperature of working liquid. Accordingly, to precisely control the damping force, correction based on change in liquid temperature of the working liquid is required. However, to measure the change in liquid temperature of the working liquid, it is necessary to provide a particular measurement device requiring a complicated structure, which increases the number of parts and costs. Accordingly, the present invention has an object to provide a steering damper which can easily temperature-correct the damping force without such difficulty. A liquid chamber is provided in a main body of a steering damper. An inside of the liquid chamber is partitioned into a right liquid chamber and a left liquid chamber by a rotatable partition wall integral with a shaft coaxial with a steering shaft. Both liquid chambers are connected with each other by a liquid passage, and a control valve is provided in the middle of the passage such that the damping force is variable. A control device drive-controls the control valve in correspondence with a turning angle speed of the shaft and the partition wall, thereby controls the damping force, and corrects the damping force based on intake temperature information detected by an intake temperature sensor.
摘要:
An air pressure detecting device serves to detect the air pressure of a wheel of a vehicle which has a tire tube disposed in a tire, the air pressure detecting device is disposed between the tire tube and the rim of the wheel portion for detecting the air pressure of the tire. The air pressure detecting device has a pressure bearing plate held in contact with the outer surface of the tire tube, a pressure sensor for detecting a pressure of the pressure bearing plate, and a detecting and transmitting unit for detecting pressure information from the pressure sensor, converting the pressure information into an electric signal, and transmitting the electric signal as a radio wave. The pressure bearing plate, the pressure sensor, and the detecting and transmitting unit are superposed in the order named. The components including the pressure bearing plate, the pressure sensor, and the detecting and transmitting circuit can be installed without the need for a special modification of the tire tube and the rim. As a result, the cost of the air pressure detecting device can be reduced.
摘要:
A partitioning member for dividing a connecting pipe into at least two exhaust passageways is provided in the connecting pipe, which is attached to an exhaust side of a silencer. A valve mechanism is operable to vary the passageway area of one of the exhaust passageways. With this structure, for example, when an engine is rotating at low revs, exhaust gas is discharged from the exhaust passageway without the valve mechanism, while when the engine is rotating at high revs exhaust gas is simultaneously discharged from the exhaust passageway having no valve mechanism and a passageway provided with the valve mechanism. Therefore, it is possible to reduce exhaust noise when the engine is rotating at low revs.
摘要:
A steering damper device attenuating the oscillations of the handlebar of a motorcycle during operation, and more particularly, a device capable of varying a damping force variable. The steering damping device prevents the adverse effect of oscillations of the handlebar that would otherwise occur when the load on the front wheel of the motorcycle becomes light. The device includes a rotary steering damper provided in a coaxial manner on a steering shaft. Either a damping force or zero damping force is produced by a variable valve arranged in the bypass passage communicating with a right liquid chamber and a left liquid chamber. The variable valve is controlled by a control device and generates a damping force in the steering damper only when the acceleration of the motorcycle as detected by the acceleration sensor exceeds a threshold value.
摘要:
A liquid pressure type steering damper system for generating a damping force for preventing a handle from being swung due to a kick-back upon a disturbance wherein the generation of the damping force is nonlinear so that the steering angle would not be enlarged so much even if the kick-back becomes greater. A liquid pressure type steering damper is provided with a restriction passage for a working liquid and a solenoid-type control valve for varying the passage sectional area of the restriction passage. A needle portion is formed at the tip end of a plunger constituting the solenoid valve and is made to advance and retract in a restriction portion connected to a bypass passage. An annular gap passage is formed between the needle portion and the inside wall of the restriction portion so that, when the needle portion advances or retracts in proportion to the steering speed of a front wheel steering system, the clearance area of the gap passage is varied in the manner of a quadric curve in relation to the stroke amount of the needle portion, whereby the generation of the damping force is rapidly increased in the manner of a quadric curve. In addition, an upper limit of the damping force is restricted by an electromagnetic force of the solenoid valve.
摘要:
An exhaust system for a vehicle includes a muffler connected to an exhaust pipe, which is in turn connected to an engine. A spark arrester is provided with a tail pipe and connected to the rear end of the muffler, and is capable of discharging an exhaust gas flowing through the muffler through the tail pipe of the spark arrester into the atmosphere. The interior of the muffler can be divided into a plurality of expansion chambers connected by restricting passages by attaching the spark arrester to the muffler to enhance the sound attenuating effect. The interior of the muffler is divided into the plurality of expansion chambers by separators disposed in the muffler and a spark arrester combined with the muffler.
摘要:
To make steerability more satisfactory in conformity with actual operation, by correcting the regulation of a damping force based on a variable quantity which has a close relationship with the magnitude of kick-back and with which the steering conditions at the time of actual operation can be grasped appropriately, in contrast to the system in which the regulation of the damping force is controlled linearly in proportion to a variable quantity related to the magnitude of kick-back. In a steering damper system of the liquid pressure type in which a damping force is exerted on a front wheel steering system provided at a front portion of a vehicle body and which comprises a control valve for making the damping force variable, the damping force is controlled based on the steering speed.
摘要:
An end of a hollow member is connected to an air valve for introducing air into a tire. A detecting and transmitting unit for detecting an air pressure in the tire and transmitting pressure information out of the detecting and transmitting unit is connected to an opposite end of the hollow member. A detecting and transmitting unit is mounted on a hub of a wheel portion. The positioning of the detecting and transmitting unit minimizes any deviation from the dynamic balancing of the wheel. Consequently, the air pressure detecting device for a wheel can be subsequently installed on the vehicle.
摘要:
A rim drop section dented in a shape of a ring is provided on an inner side of a bead seat section of a rim for holding a bead section of a tire. Furthermore, a recessed section is provided on this rim drop section, and a detecting device main body of a tire air pressure detecting device is accommodated in this recessed section. When a tire is assembled on a cast wheel by utilizing a tire changer or the like, or when the tire is removed from the cast wheel, the bead sections of the tire are prevented from interfering with an air pressure sensor, and damaging of the air pressure sensor is prevented.
摘要:
A steering damper system for motorcycles provided for generating an adjustable damping force for restraining the shaking of the steering system at the time of disturbance. The system includes a cross member laid between the front portions of the mainframes branching to the left and right from the head pipe and extending to the rear, and a steering damper mounted at the center of the cross member. A sector gear projects forward from the housing, and the teeth thereof are inserted through the opening formed on the head pipe, and are engaged with the drive gear integrally mounted around the steering stem rotatably supported within the head pipe. The resulting steering damper provides the desired adjustable damping force without adversely increasing the inertia of the steering system.