摘要:
Shifting device (1) comprising a housing (13), a shift rod (2) supported in said housing (13), a plurality of shift forks (3-6) that are disposed on said shift rod (2) next to each other, and that can be selectively coupled to said shift rod (2), and an actuator means (8) for selecting the respective gear by actuating the associated shift fork, wherein said actuator means (8) includes a gear selecting means (7) and at least one independent shift rod moving means (9), and wherein a control means (10) is provided controlling the action of said gear selecting means (7) and said shift rod moving means (9).
摘要:
A select control system for a vehicle transmission includes a gate mechanism (30) having plural gates respectively selected upon a shift operation and having at least an actual gate, a temporary target gate, and a target gate, a select position determining mechanism (7) adjusted to move the actual gate to the target gate along a select direction of the gate mechanism (30), and a select control element (6) adjusted to control the select position determining mechanism (7). The select control element (6) performs a temporary target gate remaining process in which the actual gate temporarily remains at the temporary target gate and moves to the target gate.
摘要:
A gearbox for a motor vehicle comprising at least one coupling means (213, 223, 233) for coupling a shaft (1000, 1001) to a pinion mounted about said shaft (1000, 1001), said coupling means (213, 223, 233) being movable in translation, a control cylinder (100) movable in rotation to control the translation of said coupling means (213, 223, 233), a means (610, 910) for monitoring the angular displacement of the cylinder (100), a means (700, 800, 900) for observing if the control cylinder (100) is at a predefined angular position (θ0) predefined to initialise said monitoring means (610, 910), and a means (600, 900) for controlling the rotation of the cylinder (100) until the fact that the cylinder (100) is in said predefined angular position (θ0) is observed, characterised in that the gearbox further comprises means (261, 262, 263, 900) for disengaging the coupling means (213, 223, 233) from the cylinder (100) during the implementation of said means (600, 900) for controlling the rotation of the cylinder (100) until the fact that the cylinder (100) is in said predefined angular position (θ0) is observed, and re-engaging said coupling means (213, 223, 233) in the cylinder (100) in order to engage a gear ratio.
摘要:
A select control system for a vehicle transmission includes a gate mechanism (30) having plural gates respectively selected upon a shift operation and having at least an actual gate, a temporary target gate, and a target gate, a select position determining mechanism (7) adjusted to move the actual gate to the target gate along a select direction of the gate mechanism (30), and a select control element (6) adjusted to control the select position determining mechanism (7). The select control element (6) performs a temporary target gate remaining process in which the actual gate temporarily remains at the temporary target gate and moves to the target gate.
摘要:
Ce dispositif comprend un barillet (B) muni de deux pistes de guidage (1a, 1b) à sa périphérie. Ces pistes comprennent chacune deux chicanes (9a, 11a; 9b) destinées, sous l'effet de la rotation dudit barillet (B), à entraîner le déplacement axial de deux fourchettes de passage de vitesses (5a, 5b). Ce dispositif est remarquable en ce qu'il comprend des moyens (A) pour débrayer sélectivement ladite fourchette de ladite chicane, de manière à maintenir ladite fourchette au point mort lors du défilement de ladite chicane, et à sauter ainsi la vitesse correspondante. Application aux boîtes de vitesses robotisées pour véhicules automobiles.
摘要:
A control device (1) for controlling a gear shift rod, and having a control shaft (6) connected to the gear shift rod; a linear actuator (7) for effecting given axial displacements or given angular displacements of the control rod to shift between two gear engagement positions in the same range; a first cam guide device (8) for converting, on command, the axial or angular displacements into combined axial-angular displacements, so as to shift between consecutive gears in consecutive ranges; and a second cam guide device (9) for converting, on command, the axial or angular displacements into combined axial-angular displacements, so as to shift between nonconsecutive gears in not necessarily consecutive ranges.
摘要:
When there is a request for a skip downshift that transitionally establishes an intermediate speed position, a surge hydraulic pressure at the start of a torque phase during shift control toward the intermediate speed position is set so as to be lower than a surge hydraulic pressure at the start of a torque phase during shift control toward a required speed position.