Abstract:
The present invention relates to a method for generating a trigger signal indicating an allowance to an elevator car (110) to initiate a travel in an elevator system, the method comprises: monitoring a position of an elevator door (120, 130) in its path of motion during a closing of the elevator door (120, 130), in response to a detection (310) that the elevator door (120, 130) resides at a first position (P1) generating (320) a first control signal causing a preparation of a travel of the elevator car (110); in response to a detection (330) that the elevator door (120, 130) resides at a second position (P2) generating (340) a second control signal indicating an allowance to an elevator car (110) to initiate a travel. Some aspects relate to a control unit, a computer program product and an elevator system.
Abstract:
A motion profile (20) for controlling the movement of an elevator through an acceleration phase (Δt acc ) and a deceleration phase (Δt dec ) of an elevator trip wherein the motion profile (20) is continuously differentiable. The use of a continuously differentiable motion profile frees the velocity response (R4) from free vibrations.
Abstract translation:用于控制电梯通过加速阶段(Δt acc sub>)和减速阶段(Δt dec sub>)的运动的运动轮廓(20) ),其中运动轮廓(20)是连续可微的。 使用连续可微的运动轮廓可以使速度响应(R4)免受自由振动的影响。 p>
Abstract:
The invention is in the field of elevators. The system consisting of an elevator car (3) having relatively lesser density with respect to the fluid (2) used in the elevator shaft (1) having smooth inner surface. The elevator car (3) has plurality of rings (6) that facilitates contact between shaft and car and at least one aperture (4) with valve (5) provided inside the car (3) or flow control area (15) can be provided outside the car (3). It also has safety stoppers (9) provided to arrest the motion of the car at each level.
Abstract:
Die Erfindung betrifft eine Aufzugsanlage (1) mit einem Gegengewicht (3) und einer Aufzugskabine (4), die über ein Tragmittel (5) getragen sind und sich in einem Aufzugsschacht (2) entgegengesetzt bewegen, bzw. ein Betriebsverfahren zum Betreiben einer derartigen Aufzugsanlage (1). Die Aufzugskabine (4) nähert sich in einer Annäherungszone (A) im Aufzugsschacht (2) dem Gegengewicht (3) an und/oder bewegt sich an dem Gegengewicht (3) vorbei, wobei die Aufzugskabine (4) sich ausserhalb der Annäherungszone (A) mit einer ersten Geschwindigkeit (Sl) und in der Annäherungszone (A) mit einer zweiten Geschwindigkeit (S2) bewegt, wobei die zweite Geschwindigkeit (S2) kleiner als die erste Geschwindigkeit (Sl) ist.
Abstract:
A conveyance system includes a machine having a motor; a source of AC power; a drive system coupled to the source of AC power, the drive system to provide multi-phase drive signals to the motor, the drive system including: a first drive having a first converter and a first inverter, the first convertor including a first positive DC bus and a first negative DC bus; a second drive having a second converter and a second inverter, the second convertor including a second positive DC bus and a second negative DC bus; wherein the first positive DC bus and the second DC positive bus are electrically connected and the first negative DC bus and the second negative DC bus are electrically connected.
Abstract:
An elevator control system (50) to govern elevator movement to avoid or minimize passenger discomfort caused by pressure changes associated with an elevator's movement and to optimize elevator operation. In one exemplary embodiment, the system uses the passenger's natural relief which occurs while the elevator car (42) is stopped to reduce the pressure difference experienced by the passengers' ears as a factor to optimally control the operation of the elevator. In another example, the system obtains input regarding the traveling speed and conditions of the elevator system. This system then simulates individual trips for passengers that includes monitoring the pressure changes being experienced by passengers throughout the elevator' s travels in order to ensure that the pressure differential level for each passenger remains below a designated maximum comfortable and safe level. This system uses the parameters of a successful simulation to govern the actual operation of the elevators.
Abstract:
The invention relates to a fail-safe power control apparatus (3) for supplying power between an energy source (4) and the motor (5) of a transport system. The power control apparatus comprises a power supply circuit (6), which comprises at least one converter (7, 8) containing change-over switches (32), and the power control apparatus comprises means (24) for controlling the converter change-over switches, a data transfer bus (10), at least two controllers (1, 2) adapted to communicate with each other, and a control arrangement (11) for controlling a first braking device, and possibly a control arrangement (43) for controlling a second braking device.
Abstract:
The invention relates to an electronic unintended movement governor (1 ), which comprises an input for car position data (2), means (4) for determining the speed of the elevator car, a plurality of limit values for permitted movement of the elevator car, such as the limit value (36, 37) of the maximum permitted speed of the elevator car, and which unintended movement governor also comprises overspeed monitoring (11 ) for controlling at least one stopping appliance of the elevator car when the speed (38) of the elevator car exceeds the limit value (36, 37) of the maximum permitted speed. The unintended movement governor comprises at least two separate controls (12, 13) for controlling a stopping appliance (14, 15) of the elevator car. Additionally, the invention relates to a method for controlling the aforementioned electronic unintended movement governor (1 ).
Abstract:
A rescue braking system provides a smoother elevator car movement by mechanically lifting or applying the brake. The rescue braking system incrementally adjusts the force applied to the brake based on the speed and location of the elevator car. Therefore, it can effectively eliminate the jerky vibration and noises caused by the fully on-off brake systems and make the passengers feel more comfortable when the elevator car drifts to the nearest floor door.