Patents Assigned to MAHINDRA REVA ELECTRIC VEHICLES PVT. LTD.
  • Patent number: 9478832
    Abstract: A power pack system includes an energy storage system having a plurality of energy storage devices and a thermal management system. The thermal management system includes a battery ventilation system connected to energy storage system for achieving and maintaining a predetermined temperature within energy storage system by providing a two way circulation of a working fluid. Further, the system includes a housing having a top cover and a bottom cover to receive and secure the energy storage devices therein. The top cover and bottom cover configured to retain said energy storage devices in a sealable manner. Further, a method for achieving and maintaining a pre determined temperature within an energy storage system includes providing two way circulation of a working fluid and maintaining a uniform flow velocity of the fluid at least inside the energy storage system.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: October 25, 2016
    Assignee: MAHINDRA REVA ELECTRIC VEHICLES PVT. LTD.
    Inventors: Chetan Kumar Maini, Gajanan Kale, Kannan Katturaja, Jayakumar Janardhanan
  • Patent number: 9409533
    Abstract: A method and system for identifying at a remote location provide at least one condition associated with an energy system (102) and control the energy system (102) The energy system (102) includes an energy storage system (ESS) (104) capable of storing electric energy, an energy consumption system (ECS) (106) capable of consuming electric energy from the ESS (104) and an energy management system (EMS) (108) capable of interacting with the ESS (104) and the ECS (106) A parameter associated with the ESS (104) is measured, and the measured parameter is compared with reference data to determine the deviation of the measured parameter from the reference data, and the deviation indicates the condition of the energy system (102) The deviation is determined by the EMS (108) or at the remote location, and the deviation is sent to the remote location while the deviation is determined by the EMS (108).
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: August 9, 2016
    Assignee: MAHINDRA REVA ELECTRIC VEHICLES PVT. LTD.
    Inventors: Chetan Kumar Maini, Prakash Ramaraju, Nagendra Babu Sathyanarayana
  • Publication number: 20140234675
    Abstract: A power pack system includes an energy storage system having a plurality of energy storage devices and a thermal management system. The thermal management system includes a battery ventilation system connected to energy storage system for achieving and maintaining a predetermined temperature within energy storage system by providing a two way circulation of a working fluid. Further, the system includes a housing having a top cover and a bottom cover to receive and secure the energy storage devices therein. The top cover and bottom cover configured to retain said energy storage devices in a sealable manner. Further, a method for achieving and maintaining a pre determined temperature within an energy storage system includes providing two way circulation of a working fluid and maintaining a uniform flow velocity of the fluid at least inside the energy storage system.
    Type: Application
    Filed: September 25, 2012
    Publication date: August 21, 2014
    Applicant: Mahindra Reva Electric Vehicles Pvt. Ltd.
    Inventors: Chetan Kumar Maini, Gajanan Kale, Kannan Katturaja, Jayakumar Janardhanan
  • Patent number: 8612076
    Abstract: The invention provides a method and a system for enabling antilock braking in a vehicle which is propelled at least by an electric motor. The method includes detecting tendency of locking of the at least one wheel by comparing actual rate of change of speed of the at least one of the motor, wheels, transmission, shaft and ground speed with expected rate of change of speed of at least one wheel, wherein the vehicle is being decelerated. Based on the tendency of locking at least regenerative braking is modulated to prevent locking of at least one wheel of the vehicle.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: December 17, 2013
    Assignee: Mahindra Reva Electric Vehicles Pvt. Ltd.
    Inventors: Chetan Kumar Maini, Prakash Ramaraju, Suresh Veerabetappa Munirangiah, Basab Paul, Sajith Abdul Hameed
  • Publication number: 20120059766
    Abstract: A method and a system for determining compensation to be paid for using any one of an energy storage system and an energy system are provided. The energy system is at least partially powered by electricity stored in the energy storage system. The method includes, determining the amount of consumption of electric energy from the energy storage system during a period of usage, and determining the carbon credit associated with the energy storage system or the energy system during the usage. Thereafter, the compensation is calculated based on the amount of consumption of the electric energy and the carbon credit.
    Type: Application
    Filed: April 30, 2010
    Publication date: March 8, 2012
    Applicant: MAHINDRA REVA ELECTRIC VEHICLES PVT. LTD.
    Inventors: Chetan Kumar Maini, Prakash Ramaraju, Nagendra Babu Sathyanarayana
  • Publication number: 20120059526
    Abstract: A method and system for identifying at a remote location provide at least one condition associated with an energy system (102) and control the energy system (102) The energy system (102) includes an energy storage system (ESS) (104) capable of storing electric energy, an energy consumption system (ECS) (106) capable of consuming electric energy from the ESS (104) and an energy management system (EMS) (108) capable of interacting with the ESS (104) and the ECS (106) A parameter associated with the ESS (104) is measured, and the measured parameter is compared with reference data to determine the deviation of the measured parameter from the reference data, and the deviation indicates the condition of the energy system (102) The deviation is determined by the EMS (108) or at the remote location, and the deviation is sent to the remote location while the deviation is determined by the EMS (108).
    Type: Application
    Filed: April 30, 2010
    Publication date: March 8, 2012
    Applicant: MAHINDRA REVA ELECTRIC VEHICLES PVT. LTD.
    Inventors: Chetan Kumar Maini, Prakash Ramaraju, Nagendra Babu Sathyanarayana
  • Publication number: 20120053900
    Abstract: A system and method is provided for estimating and enhancing performance that can be delivered by an energy storage system beyond the energy storage system's warranty period. The system includes an energy management system configured to communicate and manage the energy storage system and a data processing system configured to communicate with the energy management system. The system is configured to estimate performance delivered by the energy storage system beyond the energy storage system's warranty period, identify adaptations to be made to enhance the performance of the energy storage system, and make adaptations to the energy storage system, thereby enhancing the performance that can be delivered by an energy storage system beyond the energy storage system's warranty period.
    Type: Application
    Filed: April 30, 2010
    Publication date: March 1, 2012
    Applicant: MAHINDRA REVA ELECTRIC VEHICLES PVT. LTD.
    Inventors: Chetan Kumar Maini, Prakash Ramaraju, Nagendra Babu Sathyanarayana
  • Publication number: 20120053774
    Abstract: A method and a system for facilitating validation of introduction of one or more features in a variant of an electrically powered system are provided. The method includes, introducing the features in plurality of electrically powered systems which are at least partially powered by electricity. Thereafter, data is collected, corresponding to at least one of the energy storage system and the energy consumption system of each of the plurality of electrically powered systems, based on the data required for validating the features introduced in the electrically powered system. The collected data corresponding to the energy storage system and the energy consumption system is transmitted to a remote location, thereby enabling analysis of the data, at the remote location, for validating introduction of the at least one feature in the variant of the electrically powered system.
    Type: Application
    Filed: April 30, 2010
    Publication date: March 1, 2012
    Applicant: MAHINDRA REVA ELECTRIC VEHICLES PVT. LTD.
    Inventors: Chetan Kumar Maini, Prakash Ramaraju, Nagendra Babu Sathyanarayana
  • Publication number: 20110196560
    Abstract: The invention provides a method and a system for enabling antilock braking in a vehicle which is propelled at least by an electric motor. The method includes detecting tendency of locking of the at least one wheel by comparing actual rate of change of speed of the at least one of the motor, wheels, transmission, shaft and ground speed with expected rate of change of speed of at least one wheel, wherein the vehicle is being decelerated. Based on the tendency of locking at least regenerative braking is modulated to prevent locking of at least one wheel of the vehicle.
    Type: Application
    Filed: October 14, 2009
    Publication date: August 11, 2011
    Applicant: MAHINDRA REVA ELECTRIC VEHICLES PVT. LTD.
    Inventors: Chetan Kumar Maini, Prakash Ramaraju, Suresh Veerabetappa Munirangiah, Basab Paul, Sajith Abdul Hameed