617 results about "Control theory" patented technology

An electrically driven hub includes an electrical mechanism including an electrical motor and a planetary gear system connected to the electrical mechanism. A first fixed shaft is connected to the stator of the electrical motor and a second fixed shaft is connected to a second end of the stator of the electrical motor. The first and second fixed shafts are connected to the vehicle frame. A one-way clutch is connected between a cover of the hub and the planetary gear system so that the hub is rotated when the planetary gear system is activated by the motor.

A control device is provided for a hybrid vehicle power transmitting apparatus wherein when a fuel type supplied to an engine is altered, a drop in startability of the engine resulting from alteration on the fuel type is suppressed. Fuel-type determining means determines the fuel type for use in operating the engine, based on which a reactive control representing a control of reactive control of a second electric motor counteracting rotational resistance of the engine during engine startup, is altered. Accordingly, second-motor torque (reactive torque) for increasing an engine rotation speed during engine startup is adjusted depending on the fuel type, thereby increasing a temperature of fuel compressed and expanded in the engine, to a level available to initiate an ignition. This prevents the alteration of the fuel type from causing degradation in startability of the engine when the fuel type supplied to the engine is altered.

A method for operating a drive train in a motor vehicle with a dual mass flywheel driven by an internal combustion engine via a crankshaft and at least a transmission input shaft of a transmission that can be coupled with an output part of the dual mass flywheel. Between the input part and output part a hysteresis-laden damping device is effective, which influences engine torque output from the internal combustion engine and load torque transmitted to at least a transmission input shaft through the hysteresis characteristic. To eliminate the disturbances caused by the dual mass flywheel a state model constantly determines rotation speeds of the input part and of the output part and depending on a differential angle determined from the rotation speeds and from the characteristic numbers of the damping device, a characteristic disturbance torque for influencing at least the load torque is determined in real time.

A trailer hitch alignment hitch system uses height adjustable stanchions with length adjustable arms terminating in mirrors. The stanchions are respectively connectible to a tow vehicle and a trailer and placed so that the mirror is aligned vertically over the hitch connection component of the tow vehicle and the trailer and adjusted so that the respective mirrors are at different heights. The tow vehicle operator backs the tow vehicle until the mirrors visually indicate vertical alignment by one mirror coming into place below the other mirror and obstructing the view of the hitch component.

An airflow control device has a fixed damper element and a movable damper element. Shape memory wires are connected to the fixed damper element and the movable damper element. The shape memory wires are alternately electrified to cause the contraction thereof to move the movable damper element in opposite directions. A heater can be provided along with the damper elements to overcome frost buildup in cold environments, such as refrigeration systems.

The invention discloses a telescopic belt conveyor changeable in amplitude and direction, and relates to the field of logistics transportation cargo handling mechanical equipment. The telescopic belt conveyor is composed of a three-section two-stage telescopic belt conveyor body with a telescopic function, an amplitude change mechanism with tilting and amplitude change functions, and a swing rotating mechanism with swing rotating and direction change functions. According to the telescopic belt conveyor changeable in amplitude and direction, a sleeved telescopic machine frame structure is adopted, and the elongation and shortening function, the tilting and amplitude change functions and the swing rotating and direction change functions of the belt conveyor are added by additionally arranging the amplitude change mechanism and the swing rotating mechanism; the conveying range is widened, along with conducting of the loading, unloading and conveying processes, under the condition that loading and unloading places of materials are changed, the conveying distance, height and direction are adjusted by driving and controlling a telescopic mechanism, the amplitude change mechanism and a direction change mechanism, and thus, the telescopic belt conveyor can adapt to change of the loading and unloading places; cargoes are directly delivered to the destination through only one time of loading and unloading, manual auxiliary carrying is reduced, the labor intensity is relieved, the operation time is shortened, the loading and unloading efficiency is improved, and the loading and unloading carrying cost is reduced; and the working environment and the labor condition are effectively improved, and the effect that loading and unloading transport is economical, rapid, convenient and safe is ensured.

An in-wheel assembly is provided, and the in-wheel assembly includes an in-wheel actuator and a wheel. The in-wheel actuator includes a driving motor; a decelerator which is disposed inside the driving motor and configured to reduce a rotational speed of the driving motor; and a hollow shaft which is disposed inside the driving motor and configured to transfer a rotational force of the driving motor to the decelerator, which is accommodated in a hollow of the hollow shaft, and circulates fluid inside of the driving motor with respect to a surface of the decelerator when driven to rotate by the driving motor. The wheel accommodates the in-wheel actuator and receives a rotational speed reduced by the decelerator to rotate.

In an exhaust gas turbocharger for an internal combustion engine comprising a compressor and a turbine interconnected by a shaft in a rotationally fixed manner, and an electric machine which can be connected to the exhaust gas turbocharger via a clutch, the exhaust gas turbocharger can be driven at least temporarily by a disk-shaped flywheel rotatably supported on the shaft and being operable selectively by the turbine and by an electro-dynamic structure for improving the response behavior of the exhaust gas turbocharger.

A clutch actuator structure provided for an internal combustion engine and a hydraulic clutch mechanism for transmitting a rotational driving force of a crankshaft of said engine includes a clutch actuator for controlling an oil pressure for engaging and disengaging the hydraulic clutch mechanism. The clutch actuator structure ensures that noises generated at the times of operation of the clutch actuator for actuating a hydraulic clutch are prevented from being transmitted to the exterior. The clutch actuator structure includes an oil sump part for reserving oil provided in the periphery of a clutch actuator. The clutch actuator is disposed in the oil sump part.

Various methods for compensating a deflected linkage in a wastegate arrangement are provided. In one example, current is applied to an actuator to move a wastegate valve coupled through a linkage to the actuator for diverting gasses from a turbocharger. The position of the actuator is indicated, and a correction to said indicated actuator position is applied compensating for deflection of the linkage based at least on said applied current. Said applied current is adjusted when said corrected actuator position reaches a position corresponding to a desired valve position.

A bipolar pulse generator circuit generates bipolar pulses and provides an impedance transformation. The circuit is amenable for implementation in a variety of configurations depending on the size and pulse width requirements for the design. It also maximizes energy transfer and may be implemented in a straight forward, easy manner.The generator may be implemented with one or two switches in a three, five or more transmission line implementation and may include inductive stub, which is inherent element of transmission line transformers. The generator may also be implemented in a multi-layer folded configuration, with or without the addition of a ground potential conductor. The generator may also be implemented in stacked or / and balanced configurations.

A shock caused due to a change in the direction of torque transferred to an output shaft is reduced. There is provided a control device for a powertrain including a drive power source that transfers torque to an output shaft connected to a wheel of a vehicle, and a rotary electric machine that transfers torque to the output shaft via a transmission. When electric power generation performed using the rotary electric machine is restricted, if torque that decelerates the vehicle is transferred from the drive power source to the output shaft, a control is executed so that torque that does not decelerate the vehicle is transferred from the drive power source to the output shaft, and a shift control over the transmission is executed.

A device adjusts the rotational damping of a steering device such that the rotational damping varies depending on whether the rotational motion about a steering axis is caused by a force acting on the steering device of the vehicle or a force acting on the part(s) of the vehicle contacting the ground. The flow of hydraulic fluid in the steering damper partly or wholly is adjusted by a main valve unit that is coupled together with both an attaching part and a steering device. The opening area of the main valve unit is determined by a relative motion between the attaching part and the steering device such that the flow of the hydraulic fluid in a direction from and to the respective damping chambers of the steering damper is controlled depending on the cause of the rotational movement.