An elevator brake braking and holding an elevator car in an elevator system includes a first brake lining having a first actuating device and a second brake lining, which brake linings cause braking in interaction with a braking strip or brake disk. A second actuating device is associated with the second brake lining, and the second actuating device moves the second brake lining toward the first brake lining, if necessary, thus clamping and braking the braking strip or the brake disk between the second and first brake linings. The first actuating device moves the first brake lining toward the second brake lining to clamp and brake the braking strip or the brake disk between the first and second brake linings. The first and the second actuating device operate according to different principles of operation.

An elevator brake braking and holding an elevator car in an elevator system includes a first brake lining having a first actuating device and a second brake lining, which brake linings cause braking in interaction with a braking strip or brake disk. A second actuating device is associated with the second brake lining, and the second actuating device moves the second brake lining toward the first brake lining, if necessary, thus clamping and braking the braking strip or the brake disk between the second and first brake linings. The first actuating device moves the first brake lining toward the second brake lining to clamp and brake the braking strip or the brake disk between the first and second brake linings. The first and the second actuating device operate according to different principles of operation.

A number of variations include a product comprising a transfer case comprising a hydraulic system comprising a hydraulic fluid and a hydraulic pump or hydraulic motor wherein the hydraulic system is constructed and arranged to capture energy from regenerative braking of the at least one brake of at least one drive.

A number of variations include a product comprising a transfer case comprising a hydraulic system comprising a hydraulic fluid and a hydraulic pump or hydraulic motor wherein the hydraulic system is constructed and arranged to capture energy from regenerative braking of the at least one brake of at least one drive.

A braking-driving force control system is provided in which erroneous vehicle speed detection may be avoided even when a frictional braking power is generated during rotation of an output shaft coupled to an electric driving motor as driving source. When only regenerative braking force is being generated as braking force while the vehicle is traveling, the braking force and the driving force are controlled based on an output shaft side vehicle speed calculated from the rotational state of an output shaft of a driving source, and when the frictional braking power is being generated while the vehicle is traveling, the braking force and the driving force will be controlled based on a wheel side vehicle speed representing the vehicle speed calculated from the rotational state of the vehicle wheel.

In an electric automobile traveling by driving a rear wheel with an electric motor mounted on a vehicle body rear part, a load distributed to the rear wheel is larger than a load distributed to a front wheel by an amount corresponding to a weight of the electric motor. Therefore, it is desirable that a braking force distribution amount to the rear wheel be larger than that to the front wheel. Without providing a proportional pressure reducing valve changing a ratio of braking force distributed between the front and rear wheels, it is possible, by supplying a same brake fluid pressure from a master cylinder to front and rear wheel brake calipers and carrying out regenerative braking in the rear wheel, to make the braking force distribution amount to the rear wheel larger than that to the front wheel.

A brake assembly has a brake disc in rotational engagement with a wheel of a vehicle, a brake pad which frictionally engages the brake disc when an actuator force is applied thereto, an actuator having an output shaft driven in a forward direction and a reverse direction in order to bring the brake pad and brake disc into the frictional engagement, and an energy absorption and/or storage unit. The energy absorption and/or storage unit absorbs forces acting on the output shaft in the reverse direction in case of a predetermined operation situation.

A brake assembly has a brake disc in rotational engagement with a wheel of a vehicle, a brake pad which frictionally engages the brake disc when an actuator force is applied thereto, an actuator having an output shaft driven in a forward direction and a reverse direction in order to bring the brake pad and brake disc into the frictional engagement, and an energy absorption and/or storage unit. The energy absorption and/or storage unit absorbs forces acting on the output shaft in the reverse direction in case of a predetermined operation situation.

The present invention relates to a braking system for a vehicle at least partially propelled by an electric traction motor, the braking system comprising an electric machine electrically connected to an electric source; an air flow producing unit mechanically connected to, and operated by, the electric machine; and an electrical brake resistor arrangement positioned in fluid communication between the air flow producing unit and an ambient environment, the electrical brake resistor arrangement being electrically connected to the electric source and arranged to heat air supplied from the air flow producing unit by electrical power received from the electric source, and to supply heated air to the ambient environment.

A vehicle includes active grill shutters and a controller. The active grill shutters are configured to open to increase a drag on the vehicle and to close to decrease the drag on the vehicle. The controller is programmed to, in response to regenerative braking via an electric machine and an absence of friction braking, transition or maintain the active grill shutters to or in a closed position. The controller is further programmed to, in response to friction braking, transition or maintain the active grill shutters to or in the open position.