Patents by Inventor Risto Jokinen
Risto Jokinen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240101390Abstract: The invention relates to an elevator drive unit for managing a regenerative power of an elevator system. The elevator drive unit comprises: first terminals for connecting the elevator drive unit to the mains; second terminals for connecting the elevator drive unit to an elevator hoisting motor; a frequency converter for enabling a bidirectional transfer of power between the mains and the elevator hoisting motor; and a control unit. The control unit is configured to: obtain an indication representing a detection of a special operational situation of the elevator system, introduce a non-zero power limit specific to the detected special operational situation of the elevator system, and control the frequency converter to limit supply of the regenerative power from the elevator hoisting motor to the mains to the power limit. The invention relates also to an elevator system and a method for managing a regenerative power of an elevator system.Type: ApplicationFiled: December 8, 2023Publication date: March 28, 2024Applicant: KONE CorporationInventors: Tuukka KAUPPINEN, Mikko PAAKKINEN, Risto JOKINEN, Perttu KAIPIA
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Patent number: 11733995Abstract: A method for performing a software update of a people conveyor component in a conveyor system includes downloading a software update from a remote update system based on a request from one or more of the remote update system, at least one conveyor component or the conveyor system such that the software update is downloaded as a background download without affecting an operation of the conveyor system.Type: GrantFiled: April 27, 2021Date of Patent: August 22, 2023Assignee: Kone CorporationInventors: Tuukka Kauppinen, Risto Jokinen, Mikko Paakkinen
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Publication number: 20210373879Abstract: A people conveyor system and a method for software update of a people conveyor component in a people conveyor system, such as an elevator system, an escalator system and/or a moving walkway system. The conveyor system comprises a plurality of conveyor components, each said conveyor component comprising a memory and a processor running an application software, an updating means for updating conveyor component software, the updating means being communicatively connected to the conveyor components, wherein the updating means comprises or is connected to a processor and a memory, and at least one communication channel, arranged between the updating means and a remote update system.Type: ApplicationFiled: April 27, 2021Publication date: December 2, 2021Applicant: Kone CorporationInventors: Tuukka KAUPPINEN, Risto JOKINEN, Mikko PAAKKINEN
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Publication number: 20210373880Abstract: A people conveyor system and a method for software update of a people conveyor component in a people conveyor system, such as an elevator system, an escalator system and/or a moving walkway system. The conveyor system comprises a plurality of conveyor components, each said conveyor component comprising a memory and a processor running an application software, an updating means for updating conveyor component software, the updating means being communicatively connected to the conveyor components, wherein the updating means comprises or is connected to a processor and a memory, and at least one communication channel, arranged between the updating means and a remote update system.Type: ApplicationFiled: April 27, 2021Publication date: December 2, 2021Applicant: Kone CorporationInventors: Tuukka KAUPPINEN, Risto JOKINEN, Mikko PAAKKINEN
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Publication number: 20210139275Abstract: According to an aspect, there is provided an elevator parking brake comprising brake pads configured to provide a braking force against a guide rail in a loading and unloading situation of an elevator car; and at least one sensor. The elevator parking brake is configured to allow a predetermined amount of movement within the elevator parking brake in the loading and unloading situation of the elevator car, and the at least one sensor is configured to provide at least one indication associated with the movement within the elevator parking brake in the loading and unloading situation of the elevator car.Type: ApplicationFiled: October 15, 2020Publication date: May 13, 2021Applicant: Kone CorporationInventors: Antti KOSKINEN, Petri HARTIKAINEN, Pekka HALLIKAINEN, Janne SALOMAKI, Antti SAARELAINEN, Henri WENLIN, Risto JOKINEN, Timo VLASOV, Mikko PURANEN, Esa PUTKINEN, Jyrki LAAKSONHEIMO, Lauri STOLT, Tuukka KAUPPINEN, Jarkko SALORANTA, Hilkka HAMALAINEN, Sami SAARELA
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Publication number: 20200283261Abstract: A method includes commanding a brake controller to open a machinery brake, measuring the brake current of the machinery brake, and when the measured brake current does not meet or exceed a predetermined threshold value within a predetermined time period, then generating a signal indicating failure of the machinery brake and cancelling the elevator run sequence, else executing the elevator run sequence.Type: ApplicationFiled: March 3, 2020Publication date: September 10, 2020Applicant: KONE CorporationInventors: Alessio Calcagno, Lauri Stolt, Petteri Kangas, Risto Jokinen
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Patent number: 10179718Abstract: An elevator includes a control system for monitoring the load of a car, which control system is adapted to prevent the normal starting of the elevator, optionally also including relevelling, when there is an overload in the car. The elevator includes at least one position measuring device, speed measuring device and/or movement measuring device in order to determine the movement and/or position of the car, and the control system of the elevator is adapted to remove the prevention of normal starting when at least one said position measuring device, speed measuring device and/or movement measuring device detects that the car moved or is moving upwards in the elevator shaft.Type: GrantFiled: April 7, 2016Date of Patent: January 15, 2019Assignee: KONE CORPORATIONInventors: Lauri Stolt, Risto Jokinen
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Patent number: 10167172Abstract: A passenger conveyor may include a conveyor motor controlled by a conveyor control via a motor drive, the motor drive including a frequency converter with a rectifier bridge, an intermediate DC circuit and a converter bridge connected with the conveyor motor. The rectifier bridge is configured to be connected to mains via at least one relay, which relay is controlled by the conveyor control, the conveyor comprises a deep sleep mode, in which the frequency converter as well as at least a major part of conveyor control is switched off. The intermediate DC circuit forms the power supply for the conveyor control. During the activation of the deep sleep mode, the conveyor control is configured to open the relay, whereby at least one signal circuit of the conveyor is configured to remain powered at least during the deep sleep mode.Type: GrantFiled: July 19, 2017Date of Patent: January 1, 2019Assignee: Kone CorporationInventors: Pasi Raassina, Risto Jokinen, Olavi Vairio, Ari-Pekka Lahtinen
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Patent number: 9975730Abstract: In a method for performing a balance check with an elevator, a power model of the elevator is established, including the motor power fed to the motor (PM) and power parameters of the motor and the moved components in the hoistway (PK, PP, PFr, PCu, PFe), a test run of the elevator is made, mid motor power values for the up and down direction are determined, i.e. the power fed to the motor at the instant when the car is moving through the middle of the travelling path of the elevator in up and down direction with constant velocity, the difference between the mid power value in up and down direction is determined, the balancing weight difference is obtained from said mid power value difference. This method allows an easy determination of the elevator balance preferably in course of modernizations of an elevator system with a new elevator motor.Type: GrantFiled: July 29, 2015Date of Patent: May 22, 2018Assignee: KONE CORPORATIONInventors: Pekka Perälä, Riku Lampinen, Risto Jokinen, Tapio Tyni
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Publication number: 20180086606Abstract: The invention relates to a passenger conveyor, e.g. an elevator, comprising a conveyor motor being controlled by a conveyor control via a motor drive, the motor drive comprising a frequency converter with a rectifier bridge, an intermediate DC circuit and a converter bridge connected with the conveyor motor. The rectifier bridge is configured to be connected to mains via at least one relay, which relay is controlled by the conveyor control, the conveyor comprises a deep sleep mode, in which the frequency converter as well as at least a major part of conveyor control is switched off, in which conveyor the intermediate DC circuit forms the power supply for the conveyor control. During the activation of the deep sleep mode the conveyor control is configured to open the relay, whereby at least one signal circuit of the conveyor is configured to remain powered at least during the deep sleep mode.Type: ApplicationFiled: July 19, 2017Publication date: March 29, 2018Applicant: Kone CorporationInventors: Pasi RAASSINA, Risto JOKINEN, Olavi VAIRIO, Ari-Pekka LAHTINEN
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Publication number: 20160221794Abstract: An elevator includes a control system for monitoring the load of a car, which control system is adapted to prevent the normal starting of the elevator, optionally also including relevelling, when there is an overload in the car. The elevator includes at least one position measuring device, speed measuring device and/or movement measuring device in order to determine the movement and/or position of the car, and the control system of the elevator is adapted to remove the prevention of normal starting when at least one said position measuring device, speed measuring device and/or movement measuring device detects that the car moved or is moving upwards in the elevator shaft.Type: ApplicationFiled: April 7, 2016Publication date: August 4, 2016Applicant: KONE CorporationInventors: Lauri STOLT, Risto JOKINEN
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Patent number: 9367416Abstract: The invention relates to a safety circuit of an elevator and also to a method for identifying a functional nonconformance of the safety circuit of an elevator. In the method a message is formed in node A, a testing field is added to the message for testing the operation of the safety circuit of an elevator, and the aforementioned message containing the testing field is sent from node A to the communications bus in the safety circuit of the elevator.Type: GrantFiled: May 20, 2013Date of Patent: June 14, 2016Assignee: Kone CorporationInventors: Antti Hovi, Ari Kattaninen, Risto Jokinen
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Publication number: 20150329320Abstract: In a method for performing a balance check with an elevator, a power model of the elevator is established, including the motor power fed to the motor (PM) and power parameters of the motor and the moved components in the hoistway (PK, PP, PFr, PCu, PFe), a test run of the elevator is made, mid motor power values for the up and down direction are determined, i.e. the power fed to the motor at the instant when the car is moving through the middle of the travelling path of the elevator in up and down direction with constant velocity, the difference between the mid power value in up and down direction is determined, the balancing weight difference is obtained from said mid power value difference. This method allows an easy determination of the elevator balance preferably in course of modernizations of an elevator system with a new elevator motor.Type: ApplicationFiled: July 29, 2015Publication date: November 19, 2015Applicant: KONE CorporationInventors: Pekka Perälä, Riku Lampinen, Risto Jokinen, Tapio Tyni
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Patent number: 8869945Abstract: The invention relates to a safety arrangement of an elevator system and to a method for ensuring safety in an elevator system. The safety arrangement comprises at least one mechanical stopping appliance and the control of the safety arrangement comprises at least one limit value that sets the speed, deceleration or permitted vertical distance from the door zone of the elevator car. In the method for ensuring safety in an elevator system at least one mechanical stopping appliance is fitted to the safety arrangement of the elevator system and at least one limit value that sets the speed, deceleration or permitted vertical distance from the door zone of the elevator car is set for the control of the safety arrangement.Type: GrantFiled: February 17, 2009Date of Patent: October 28, 2014Assignee: Kone CorporationInventors: Ari Härkönen, Sakari Korvenranta, Ari Kattainen, Timo Syrman, Hannu Ahrnberg, Risto Jokinen
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Patent number: 8841801Abstract: The invention relates to an arrangement and a method for limiting the input power of a power supply appliance (1) fitted between a power source (2) and a load (3). The arrangement according to the invention comprises a power supply appliance (1) fitted between a power source (2) and the load to be supplied (3), which power supply appliance (1) is fitted to limit its input power on the basis of the status of the aforementioned power source (2).Type: GrantFiled: May 19, 2010Date of Patent: September 23, 2014Assignee: KONE CorporationInventor: Risto Jokinen
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Patent number: 8720649Abstract: The invention relates to an elevator system and also to a method for detaching an elevator car and/or a counterweight from a safety gear. In the method torque pulses are produced with the hoisting machine of an elevator, for detaching a gripped stuck elevator car and/or a gripped stuck counterweight.Type: GrantFiled: May 8, 2012Date of Patent: May 13, 2014Assignee: Kone CorporationInventor: Risto Jokinen
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Publication number: 20140032970Abstract: The invention relates to a safety circuit of an elevator and also to a method for identifying a functional nonconformance of the safety circuit of an elevator. In the method a message is formed in node A, a testing field is added to the message for testing the operation of the safety circuit of an elevator, and the aforementioned message containing the testing field is sent from node A to the communications bus in the safety circuit of the elevator.Type: ApplicationFiled: May 20, 2013Publication date: January 30, 2014Applicant: KONE CORPORATIONInventors: Antti HOVI, Ari KATTANINEN, Risto JOKINEN
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Publication number: 20120217097Abstract: The invention relates to an elevator system and also to a method for detaching an elevator car and/or a counterweight from a safety gear. In the method torque pulses are produced with the hoisting machine of an elevator, for detaching a gripped stuck elevator car and/or a gripped stuck counterweight.Type: ApplicationFiled: May 8, 2012Publication date: August 30, 2012Applicant: KONE CORPORATIONInventor: Risto Jokinen
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Patent number: 7942246Abstract: An elevator system where control appliances of the elevator system are fitted to communicate between themselves is described herein. The elevator system has a control arrangement for placing at least one control appliance into standby mode or for terminating the standby mode. The control arrangement is fitted to set the standby mode on the basis of at least one activation signal, as well as to send a control signal of the standby mode to at least one control appliance of the elevator system. Associated methods for fitting a standby mode into an elevator system are also described herein.Type: GrantFiled: May 28, 2010Date of Patent: May 17, 2011Assignee: Kone CorporationInventors: Tapio Saarikoski, Jari Helvilä, Risto Jokinen
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Publication number: 20100258383Abstract: The invention relates to an elevator system (1), which comprises control appliances (2,3,4,5,6,7,8,9,10) of the elevator system fitted to communicate between themselves. The elevator system comprises a control arrangement (11) for placing at least one control appliance into standby mode or for terminating the standby mode. The control arrangement is fitted to set the standby mode on the basis of at least one activation signal, as well as to send a control signal (21) of the standby mode to at least one control appliance of the elevator system. The invention also relates to a method for fitting a standby mode into an elevator system.Type: ApplicationFiled: May 28, 2010Publication date: October 14, 2010Applicant: KONE CorporationInventors: Tapio SAARIKOSKI, Jari Helvila, Risto Jokinen