Abstract: The system is provided to calibrate the ECU of the vehicle. The system comprises a remote computer, a central server, a local computer and setup comprising at least a dynamo meter, and at least one actuator. The dynamo meter and the actuator are interfaced and operated with the local computer. The central server is connected to the local computer by a second networking means, and a remote computer is connected to the central server by a first networking means. The remote computer, uploads instructions to the central server, executes the instructions through the local computer to operate the dynamo meter and the actuator, and calibrates the ECU of the vehicle. The instructions are downloaded to the local computer by the second networking means.
Type:
Grant
Filed:
December 6, 2017
Date of Patent:
February 7, 2023
Assignees:
Robert Bosch GmbH, Robert Bosch Engineering and Business Solutions Private Limited
Abstract: A method is for route identification that is conducive for successful diagnosis of an exhaust gas treatment system of a vehicle. In the method, an ECU in the vehicle receives a value of GPS coordinates from a GPS module, and the ECU retrieves a value of day, date, and time from an ECU clock. The ECU monitors a value of engine operating conditions with reference to the received value of GPS coordinates and the retrieved value of day, date, and time. The ECU identifies a segment of GPS coordinates for successful diagnosis of an exhaust gas treatment system based on the monitored value. Upon the identification, the segment of GPS coordinates is stored in ECU memory.
Type:
Grant
Filed:
February 19, 2022
Date of Patent:
November 15, 2022
Assignees:
Robert Bosch GmbH, Robert Bosch Engineering and Business Solutions Private Limited
Abstract: A control unit is configured to determine a first parameter from a back EMF signal, and to determine at least one second parameter from the back EMF signal corresponding to the first parameter. The control unit verifies, based on the first parameter, at least one condition containing the at least one second parameter, and detects stall or step-loss in the stepper motor based on the verification. The control unit uses a pattern detection by identifying characteristic features of peaks of the back EMF signal, which are order, magnitude and polarity. These characteristic features are independent of RPM, backlash, load and do not require complex calculations and are very robust even at lower RPMs.
Type:
Grant
Filed:
May 26, 2020
Date of Patent:
June 28, 2022
Assignees:
Robert Bosch GmbH, Robert Bosch Engineering and Business Solutions Private Limited
Abstract: Techniques for electromagnetic modelling of EM structures are described. Krylov subspace of a second EM structure is augmented with Eigen vectors of a first EM structure to form an augmented space. The second EM structure is a design variant of the first EM structure and the first EM structure is already EM modelled and simulated. Thereafter, Maxwell's equations for the second EM structure are solved using the augmented space.
Type:
Grant
Filed:
July 18, 2017
Date of Patent:
February 8, 2022
Assignees:
INDIAN INSTITUTE OF SCIENCE, ROBERT BOSCH ENGINEERING AND BUSINESS SOLUTIONS PRIVATE LIMITED
Abstract: A controller is provided to drive an inverter circuit for a PMSM. The inverter circuit is connected to a battery through a DC link capacitor, and is driven in one safe state during a fault condition. The controller monitors at least one parameter with respective threshold value to drive the inverter circuit in one safe state comprising an active Short Circuit (SC) and a Freewheel (FW). While in FW state, the controller switches from the FW state to the SC state if the at least one parameter is above the respective threshold. While in SC state, the controller controls engine speed to bring the PMSM to a predetermined speed when the stator temperature is more than a threshold temperature value. The controller switches from the SC state to the FW state.
Type:
Grant
Filed:
May 31, 2017
Date of Patent:
October 23, 2018
Assignees:
Robert Bosch GmbH, Robert Bosch Engineering and Business Solutions Private Limited