An elevator system and/or method executed by an elevator controller for detecting a fault within the elevator system. The elevator controller utilizes the fault to disable a drive control portion of the elevator controller and activate a drive u-stop control portion of the elevator controller. The drive u-stop control portion of the elevator controller generates a signal based on at least one of a speed estimation, a velocity profile, and feedforward information. The elevator controller applies the signal to an inverter connected to the elevator controller to execute the urgent stop of an elevator car of the elevator system.

Elevator, which includes at least an elevator car and a device for moving the elevator car, preferably along guide rails, and a counterweight, and one or more ropes, which rope connects the elevator car and the counterweight and is separate from the supporting function and passes around a diverting pulley mounted on the bottom end of the elevator hoistway. The rope comprises a power transmission part or a plurality of power transmission parts, for transmitting power in the longitudinal direction of the rope, which power transmission part is essentially fully of non-metallic material.

An elevator installation includes a shaft in which at least two elevator cars are arranged one above the other and are capable of travel upward and downward in a vertical direction separately from one another, wherein each elevator car is assigned a travel drive. The elevator cars are capable of travel with large and small spacings to one another without the risk of collision by coupling at least two elevator cars together by way of a variable-length, releasable coupling device, wherein the spacing between the coupled-together elevator cars can be varied, in a manner dependent on the relative speed between the two elevator cars, with the aid of at least one of the travel drives.

An elevator system (20) load bearing assembly (30) includes a plurality of load bearing members (32-38). At least one of the load bearing members (32-38) has a load carrying capacity that is different than at least one other of the load bearing members (32-38). A disclosed example includes equal numbers of load bearing members (32, 38) having a first load carrying capacity and equal numbers of load bearing members (34, 36) having a second, different load carrying capacities. Another example includes at least three different load carrying capacities. With the disclosed examples, the aggregate load carrying capacity of an elevator load bearing assembly (30) can more closely meet the load carrying requirements for a given elevator system without over-roping the system.

A drive unit for an elevator installation having a first traveling body and a second traveling body, which traveling bodies are supported by a support device, drives the support device and thus the two traveling bodies. The two traveling bodies each have at least one first support roller by which the support device supports the traveling bodies, at least partially. The drive unit includes at least one first and one second roller arranged on a common axis of rotation of the drive unit, wherein at least one of the first or second rollers is a drive unit roller for driving the support device. On the way from the first traveling body to the second traveling body, the support device is guided over the first drive unit roller and over the second drive unit roller. The guidance is hereby such that the circumferential speeds of the two drive unit rollers vary.

A drive unit for an elevator installation having a first traveling body and a second traveling body, which traveling bodies are supported by a support device, drives the support device and thus the two traveling bodies. The two traveling bodies each have at least one first support roller by which the support device supports the traveling bodies, at least partially. The drive unit includes at least one first and one second roller arranged on a common axis of rotation of the drive unit, wherein at least one of the first or second rollers is a drive unit roller for driving the support device. On the way from the first traveling body to the second traveling body, the support device is guided over the first drive unit roller and over the second drive unit roller. The guidance is hereby such that the circumferential speeds of the two drive unit rollers vary.

Provided is an elevator device, in which a hoisting machine includes a main shaft, a brake drum rotatable about an axis of the main shaft, and a brake unit arranged at a position on a radially outer side of the brake drum. The brake unit includes a movable member and presses the movable member in an obliquely upward direction against an outer peripheral surface of the brake drum to apply a braking force to the brake drum. The car guide rail is retained by an upper rail bracket at a position higher than a position of the machine base. The brake unit is arranged at a position higher than the machine base and lower than the upper rail bracket.

Provided is an elevator device, in which a hoisting machine includes a main shaft, a brake drum rotatable about an axis of the main shaft, and a brake unit arranged at a position on a radially outer side of the brake drum. The brake unit includes a movable member and presses the movable member in an obliquely upward direction against an outer peripheral surface of the brake drum to apply a braking force to the brake drum. The car guide rail is retained by an upper rail bracket at a position higher than a position of the machine base. The brake unit is arranged at a position higher than the machine base and lower than the upper rail bracket.

A battery powered elevator system in which the battery and power electronics needed to connect the battery to the machine driving the elevator system are mounted in close proximity within the hoistway of the elevator system to minimize power transmission losses.

A battery powered elevator system in which the battery and power electronics needed to connect the battery to the machine driving the elevator system are mounted in close proximity within the hoistway of the elevator system to minimize power transmission losses.