4results about How to "Improve torque transmission efficiency" patented technology

The invention relates to the technical field of automobile driving, in particular to a distributed electric driving system, a driving method and a vehicle. A driving unit is arranged in the shell, the driving unit comprises a stator assembly, a rotor assembly and a modulation ring, and the stator assembly comprises a stator iron core and a plurality of winding coils; a corresponding stator permanent magnet is arranged on one side, facing the axis, of each group of winding coils; the rotor assembly comprises a rotor shaft and a rotor iron core, and a plurality of rotor permanent magnets which are distributed at equal intervals in the circumferential direction are arranged on the outer side of the circumference of the rotor iron core; the modulation ring is located between the stator iron core and the rotor iron core, the modulation ring, the stator iron core and the rotor iron core are coaxially arranged, air gaps are formed between the modulation ring and the stator iron core and between the modulation ring and the rotor iron core, and a plurality of modulation blocks which are arranged at equal intervals in the circumferential direction and correspond to the stator permanent magnets and the rotor permanent magnets are arranged on the outer side of the circumference of the modulation ring. The electric driving system is simple and compact in structure and has the advantages of being high in efficiency, low in noise, high in torque density and high in reliability.

A method of operating a shift system for a vehicle transmission, comprising: engaging a clutch to operatively couple one of a first gear ratio and a second gear ratio to an input member; and moving a disconnect member from a first disconnect position, in which a disconnectable component is disengaged from the disconnect member, to a second disconnect position, in which the disconnectable component is engaged with the disconnect member, to operatively couple the other of the first gear ratio and the second gear ratio to the input member through a shift assembly. Engaging the clutch and moving the disconnect member is performed such that the clutch is operatively coupled to one of the first gear ratio and the second gear ratio while the shift assembly is operatively coupled to the other of the first gear ratio and the second gear ratio, thereby preventing torque from being transmitted through either of the first gear ratio and the second gear ratio of the vehicle transmission to park the vehicle.

The utility model provides a drive-by-wire mechanical brake, and belongs to the field of automobiles. The problems that a traditional braking system is heavy in weight, low in response speed and not easy to arrange, assemble and maintain are solved. The cycloid disc speed reducing caliper comprises a caliper body which is arranged on a caliper seat in a sliding mode, two friction blocks which are oppositely arranged are arranged on the caliper seat, and the rotating end of a motor is connected with the input end of a cycloid disc speed reducing assembly through an eccentric shaft. A locking ring; one end of the cylindrical cam shaft is coaxially arranged in the locking circular ring and is provided with bulges which are in one-to-one correspondence with all the shifting blocks; the ejector rod roller and the cylindrical cam shaft are coaxially arranged, the ejector rod roller is matched with the driving sliding groove, and the motor drives the eccentric shaft to rotate and drives the cylindrical cam shaft to rotate after speed reduction of the cycloid disc speed reduction assembly; the cylindrical cam shaft rotates to drive the ejector rod roller through the driving sliding groove to push the friction block on the corresponding side to press the brake disc, and then the reacting force drives the caliper body to press the friction block on the other side, so that the friction blocks on the two sides press the brake disc. The brake is mainly used for vehicle braking.

The utility model discloses a kind of adjusting device of automatic adjustment rotor center height, including fixed support, center height driving device and center height adjusting assembly are installed on fixed support, center height driving device is connected with center height adjusting assembly, center height adjusting assembly is installed with adjusting support, adjusting support is provided with tensioning device, hug tightly device, hug tightly driving device and belt driving device, belt driving device is connected with tensioning device and hug tightly device by belt, belt is pressed on rotor, hug tightly driving device drives hug tightly device to realize opening and hug tightly operation, center height driving device drives adjusting support to slip along center height adjusting assembly.The adjusting device of automatic adjustment rotor center height provided by the utility model can automatically adjust the center height of the rotor, and automatically adjust the length and tension of the belt according to the diameter of the rotor. It has high automation degree, can effectively save labor cost and has wide application range.