Abstract:
A cam member (14) for a vehicle differential (10) includes a cam surface (14a) made of a high-durability alloy and a clutch surface (14b) made of a high-density magnetic alloy. The cam surface (14a) and the clutch surface (14b) can either be formed into a single component or as separate components that are mechanically coupled together. In one aspect, both the high-durability alloy and the high-density magnetic alloy are powdered metal alloys. As a result, the cam member (14) has different surfaces (14a, 14b) with optimized characteristics that would ordinarily be difficult to incorporate into a single component.
Abstract:
The present invention relates to a transmission system (1) having a differential (10) of the neutral shaft (15) or "zero shaft" type, intended to be fitted to at least one set (12) of front and/or rear wheels of a motor vehicle equipped with a power plant, said system (1) comprising at least one input shaft (11) connected to the power plant, two output shafts (12) connected to the two wheels (12d, 12g) of the set, a neutral shaft (15) for controlling said output shafts (12), characterized in that, with the vehicle being of the hybrid or fully electric type, the differential transmission system (1) further comprises a regenerative braking device (20) mounted on the input shaft (11) and intended to recover the energy of braking and convert it into electrical energy that can be reused immediately or stored in a battery.
Abstract:
Изобретение относится к области транспортного машиностроения и механизмов, в которых необходимо оптимизировать разгон ведомого вала. Согласно изобретению, в трансмиссии используют дифференциальную передачу, имеющую один вход и два выхода, передающих различную величину крутящего момента, оба выхода которой подключаются к ведомому валу, один непосредственно, а второй соединён с управляемой обгонной муфтой, ответная часть которой соединена с корпусом, служащей для торможения второго выхода и увеличения крутящего момента на ведомом валу, и с ведомым валом через управляемую силовую муфту скольжения, которая, частично блокируя дифференциал, создаёт условия для раскручивания всего механизма вместе с ведомым валом. При разгоне, выход передачи, передающий большую долю крутящего момента, соединённый с ведомым валом, вращается в ту же сторону, что и вал привода, а второй выход передачи, передающий меньший крутящий момент, стремится вращаться в обратную сторону, но этому препятствует обгонная муфта, связанная со вторым выходом, ответной частью соединённая через силовую муфту скольжения с корпусом. При увеличении нагрузки на ведомом валу, он тормозится, и выход, соединённый с ним через силовую и обгонную муфты, стремящийся начать обратное вращение, затормозится обгонной муфтой, крутящий момент на ведомом валу увеличится.
Abstract:
A power transmitting device includes a case and first and second dogs. The first dog is rotatably disposed in the case about an axis and includes a set of first dog teeth. The second dog is movable along the axis and is non-rotatably coupled to the case. The second dog has a set of second dog teeth. One of the sets of first and second dog teeth includes a plurality of pins. Each of the pins extends parallel to the axis and includes a centerpoint and first and second contact surfaces that are defined by first and second radii, respectfully. A width of the pin across the first and second contact surfaces is smaller in length than a sum of a magnitude of the first radius and a magnitude of the second radius. A method for forming a power transmitting device is also provided.
Abstract:
The invention proceeds from a spur gear differential gearing having a drive input unit (10a; 10b; 10c), which is rotationally fixedly connected to a planet carrier (11a; 11b; 11c), and having at least two drive output units (14a, 15a; 14b, 15b; 14c, 15c). It is proposed that the spur gear differential gearing has at least one hydraulic shift clutch device (20a; 20b; 20c) which is provided to connect at least two of the drive output units (14a, 15a; 14b, 15b; 14c, 15c) to one another.
Abstract:
A remotely controlled electronically actuated vehicle differential system is disclosed. In one embodiment, an electronically actuated vehicle differential is selectively controlled via a remote control unit. The remote control unit generates differential activation and deactivation signals that are received by a wireless receiver unit disposed within a vehicle. An electronically actuated differential is operatively coupled to receive input signals from the wireless receiver unit. The operational status (i.e., engagement or disengagement of a traction modifying differential gear mechanism) of the electronically actuated differential is controlled by the input signals received from the wireless receiver. In one embodiment, the electronically actuated differential comprises an electronically actuated locking differential. In this embodiment, the electronically actuated locking differential fully locks the differential when the locking differential activation signals are received by the wireless receiver unit. The electronically actuated locking differential unlocks the differential when the locking differential deactivation signals are received by the wireless receiver unit.
Abstract:
A transmitting torque limiting apparatus, used in a power transmitting apparatus, includes side gears (40) and side gears piece (42) one of which are axially shiftable. The side gears (40) and the side gear pieces (42) respectively have first engaging teeth (60a) and second engaging teeth (60b) each being provided with a pressure angle (Alpha). Due to such pressure angle, when an excessive torque is inputted into the power transmitting apparatus, a thrust force (F1) is generated for disengaging the engagement between the first engaging teeth (60a) and second engaging teeth (60b). Thus, inputting of the excessive torque into the power transmitting apparatus can be limited.
Abstract:
The present invention relates to a differential gear equipped with a selectively controllable locking device. Said locking device is self energizing, i.e. it utilizes the differentiation energy (i.e. the possible torque imbalance) to self- lock on its own accord. The control signal is therefore not needed to lock the locking device but rather to selectively control it not to lock itself. Said control signal is designed to, separately for each of the two possible differentiation directions, allow or not allow the locking device to lock. In this way the differential gear will get four different working modes. Said working modes are respectively; open regardless of differentiation direction; open in one differentiation direction but self-locking in the other direction; open in the other direction but self-locking in the first one; self-locking regardless of differentiation direction. A control unit is supplied with sensor data of the present "driving situation". Said control unit has a steering strategy. With the right steering strategy it can regulate the control signal so as to admit the differential gear to equalize the torque at each output shaft for as long as possible but still to practically eliminate the risk of one wheel spin.
Abstract:
The invention has the vocation to improve the traditional conical wheels differential that is used for the motor vehicles and which has an important deficiency: if one of the driven wheels gets to a slippery ground this wheel will spin, the pulling power of the engine will be lost and the vehicle will stop. This invention ensures that total engine power will be transmitted to the sticky motoring wheel of the vehicle. In this way the pulling power will not be lost. The recommended solution makes possible for the vehicle to turn while the differential lock is closed, without the danger of breaking of the vehicle's axles. This is an important requirement for climbing mountain serpentine roads. The invention can also be used for the production of the gear-distributing box, which is used at the 4x4 driven vehicles. If the wheels of the vehicle don't slip the differential lock can be disconnected totally.
Abstract:
Eine Differentialgetriebeeinheit mit steuerbarer Drehmoment- und Drehzahlverteilung, besteht aus einem Gehäuse (1), einem Ausgleichsgetriebe (6), einem Überlagerungsgetriebe (7) und einem Zusatzantrieb (8), wobei das Ausgleichsgetriebe (6) ein vom Fahrzeugmotor angetriebenes Eingangsglied (11), Ausgleichsräder (14) und zwei Ausgangsglieder (15,16) mit Ausgangswelle (3,4) umfasst. Um bei geringem Raumbedarf mit einem schwachen Zusatzantrieb eine genaue Steuerung zu erreichen, ist das Uberlagerungsgetriebe (7) an das stationäre Gehäuse (1) der Differentialgetriebeeinheit, an das Eingangsglied (11) des Ausgleichsgetriebes, an den Zusatzantrieb (8) und an eine einzige Ausgangswelle (3) angebunden. Das Überlagerungsgetriebe (7) ist ein fünfgliedriges Planetengetriebe, das ein erstes (22) und ein zweites (27) Sonnenrad, ein erstes (20) und ein zweites (25) Hohlrad und erste (21) und zweite (26) Planetenräder auf einem gemeinsamen Planetenträger (28) umfasst, wobei die ersten und zweiten Planetenräder (21,26) jeweils mit dem ersten beziehungsweise zweiten Sonnenrad (22,27) und dem ersten beziehungsweise zweiten Hohlrad (20,25) kämmen.