Patent classifications
B60T1/005
Vehicle control device
A vehicle control device controls a vehicle control system, which includes a shift range switching system configured to switch a shift range by controlling a drive of a shift actuator, and an electric brake system configured to brake a vehicle by controlling a drive of a brake actuator. The vehicle control device includes a shift control unit and a brake control unit. The shift control unit controls a drive of the shift actuator. The brake control units control a drive of a brake actuator. When the start switch of the vehicle is turned off, the power of the brake control units is turned off after the shift range switching system completes switching to the P range.
Hydraulic valve module and method for supplying hydraulic pressure to circuits of a vehicle
A first valve module (4000) includes a valve block and circuits for controlling hydraulic pressure to parking brake and differential lock actuation circuits of a vehicle. An extension flowpath (4010) has an extension inlet and outlet opening respectively through an interface surface and further external surface of the valve block. A second module (1000) may be connected to supply a first service brake circuit, the circuits of the first module, and, via a second service brake outlet communicating with the extension inlet, a second service brake circuit. In a method, first and second valve blocks with internal flowpaths formed respectively by machining and by casting are assembled together with valves to define valve modules (4000, 1000) having respective, first and second functional circuits. The first valve block includes an extension flowpath. The second module supplies pressure to the first functional circuit and the extension flowpath of the first module.
Park Lock System with Added Safety Features
A park lock system for a vehicle transmission, includes a movable primary carrier, a secondary carrier, a rod, a first biasing member, an engagement carrier, and a first actuator. The movable primary carrier defines a primary internal space. The secondary carrier is located within the primary internal space and is movable relative to the primary carrier. The rod fixedly extends from the secondary carrier and includes a rod portion located outside of the primary internal space. The first biasing member is located within the primary internal space between the secondary carrier and the primary carrier. The engagement carrier is configured to receive the rod portion and includes a terminal portion operably connected to a pawl and a park lock wheel arrangement to lock and unlock the vehicle transmission. The first actuator is configurable in a first state or a second state.
Parking lock for a vehicle transmission
The invention concerns a parking lock of a motor vehicle transmission with a ratchet wheel (1) and a ratchet (2), wherein the ratchet wheel (1) and the ratchet (2) consist of plastic, the ratchet (2) having a first ratchet tooth (6) and a further ratchet tooth (7), and the ratchet wheel (1) having a first tooth receiver (12) and a further tooth receiver (13), the first ratchet tooth (6) being hookable into the first tooth receiver (12) and the further ratchet tooth (7) being hookable into the further tooth receiver (13).
CONTROL DEVICE FOR POWER TRANSMISSION MECHANISM
A control device for a power transmission mechanism includes a controller. The power transmission mechanism includes an engagement mechanism and an operation mechanism including a movable member and a guide member. The guide member includes a plurality of guide areas being configured to move relative to the movable member to guide the movable member to an engaging position or to a disengaging position. The controller is configured to switch, when determining that a predetermined condition related to traveling of the vehicle is satisfied, a contact guide area that is in contact with the movable member to guide the movable member to the engaging position or to the disengaging position, from a first guide area to a second guide area that are included in the plurality of guide areas.
CONTROL DEVICE FOR AUTOMATIC TRANSMISSION
A control device for an automatic transmission includes a parking lock mechanism configured to lock/unlock rotation of a power transmission shaft by setting a parking rod at locked/unlocked position when the automatic transmission is in a parking range or in other ranges, a parking drive mechanism configured to set the parking rod at the unlocked position by supplying hydraulic pressure, a hydraulic pressure control valve configured to intercept the hydraulic pressure supply to the parking drive mechanism when power is supplied thereto, and supply the pressure when power is not supplied thereto, a regulating mechanism configured to regulate the movement of the parking rod at the locked position, and a controller configured to, when the parking rod is at the locked position, maintain supply of power to the valve, while an engine speed is higher than a given value, after power of a vehicle is turned OFF.
Selectable torque transfer mechanism for a vehicle transmission
A vehicle powertrain includes an internal combustion engine having a crankshaft coupled to a flywheel having a ring gear. The powertrain also includes a transmission having an input shaft coupled to the flywheel and a brake mechanism having a pivotable rocker configured to selectively inhibit crankshaft rotation. The brake mechanism also includes an electric actuator configured to drive a plunger in connection with a first end of the rocker, wherein the first end engages the ring gear in a first position to inhibit forward rotation and a second end of the rocker engages the ring gear in a second position to inhibit rearward rotation.
Latching devices
Described herein are latching devices where relative speed of movement between members is in part controlled or reduced via eddy current formation and in part controlled or relative motion stopped via a latch arrangement. Various embodiments are described, one being use of a conductive member; at least one magnetic field and a latch member that, prior to latching, moves independently to the at least one conductive member. A kinematic relationship exists between the conductive member and at least one magnetic field that enables the conductive member to move at a different speed relative to the magnetic field on application of an energizing force, thereby inducing an eddy current drag force by relative movement of the conductive member in the magnetic field. The eddy current drag force resulting causes movement of the conductive member causing the conductive member to engage the latch member thereby halting movement between the at least one conductive member and the at least one latch member.
Automatic transmission of a vehicle, comprising a central synchronizing device, and method for operating an automatic transmission
An automatic transmission (3) of a vehicle having a central synchronization device (8) with at least one shift element (33; 9, 10) assigned to a transmission input shaft (32; 6, 7) and being a friction locking brake, an actuating device (14) driven by supplying energy, and at least one transmission region (34; 12, 13) disposed between the brake and a transmission output shaft (30), an operative connection between the transmission input shaft and the transmission output shaft and different transmission ratios are producible over the at least one transmission region. The brake is transferable with the operative connection and the actuating device (14) into an operating state in which a transmission input shaft (6) interacting with the brake (33; 9, 10), is held in a rotationally fixed manner by the brake (33; 9, 10), wherein the brake (33; 9, 10) is held by the actuating (14) without any energy infeed.
Rollator braking system
A braking system for a rollator with a frame includes an adjustable handle to be installed on a right subframe or a left subframe of the frame of the rollator, a bracket fixedly connected to the handle, a lever rotatably connected to the bracket, a lock movably connected to the bracket and configured to fix the lever in a locked position when the lock is moved relative to the bracket once the lever is rotated toward the frame, and a wire operably connected between the lever and a brake on the frame of the rollator, such that the wire applies the brake when the lever is rotated toward the bracket and when the lever is fixed in the locked position.