Abstract: A method of operating a system for diagnosing software for a vehicle according to the present invention includes: generating a plurality of data sets including a function and an argument related to a diagnosis of target software executed in each of the plurality of cores; sequentially outputting the plurality of data sets to a shared memory; operating the target software according to the data set of the shared memory; and verifying the operation result in a verifying core.
Abstract: A method of determining a learning area of injector opening duration according to the present exemplary embodiment divides an entire control area for controlling opening duration of an injector into a learning map area which needs learning and a reference map area which uses an already prepared reference map as is without learning, and a period from a minimum injection time to a minimum linear injection time of the injector is determined as the learning map area, and a period from the minimum linear injection time to a maximum injection time is determined as the reference map area.
Abstract: Disclosed is a gear shift control method of a Dual Clutch Transmission (DCT) vehicle. The gear shift control method includes a gear shift start determination step of determining whether a kick down shift, a biaxial shift determination step of determining, when the kick down shift is started, whether the gear shift is a biaxial shift; a clutch torque control step of uniformly decreasing torque of a release-side clutch and uniformly increasing torque of a connection-side clutch to synchronize revolutions per minute of a target gear input shaft with increasing revolutions per minute of an engine, a clutch synchronization determination step of determining whether the revolutions per minute of the target gear input shaft is synchronized with the revolutions per minute of the engine by the clutch torque control, and a gear shift performing step of performing gear shift control for engaging the target gear.
Abstract: Provided is a camera apparatus for a vehicle, including a housing having a recess formed therein. The housing may include: a main wall part having a camera hole formed therein; a base part extended from the main wall part and having a downward slope in which a distance from the center axis of the camera hole to the base part increases toward the end of the base part from the main wall part; and a sidewall part adjacent to the main wall part and extended upward from the base part, the main wall part, the base part and the sidewall part form the recess in the housing, and a light trap part for trapping light reflected from the base part and the sidewall part into the camera hole is installed on the base part and the sidewall part.
Type:
Grant
Filed:
July 27, 2018
Date of Patent:
October 29, 2019
Assignee:
Hyundai Autron Co., Ltd.
Inventors:
Chang Woo Ha, Jun Muk Lee, Ho Joon Kim, Byung Jik Keum
Abstract: Provided are a method of distributing tasks of an AUTomotive Open System Architecture (AUTOSAR) operating system and managing OsTask using OsAlarm in the AUTOSAR operating system, the method comprises, storing in Counter_BSW a value of a counter at a time when a function for setting an alarm for a basic software (BSW) module is called, storing in Counter_RTE the value of the counter at a time when a function for setting an alarm for an application software (ASW) module is called and correcting an offset value of the alarm for the ASW module using a value of Counter_BSW and a value of Counter_RTE.
Abstract: Disclosed herein are an apparatus and a method for controlling PWM switching frequency that employ a negate PWM scheme to thereby increase PWM switching frequency, improve control responsiveness, and reduce the size of the circuit. The apparatus includes: a power factor correction (PFC) converter configured to convert an AC voltage into a DC voltage, the converter comprising a transistor controlling an operation of the PFC converter and a current sensor for measuring an electric current flowing through the transistor; and a controller configured to receive an output from the current sensor and calculate a duty ratio of a switching signal applied to a gate terminal of the transistor. The controller applies the calculated duty ratio to the switching signal in an on-duty period of the switching signal.
Abstract: Disclosed is a method for an electronic control unit to prevent the discharge of a battery. The method includes the steps of detecting an off signal of vehicle function power connected to a battery and monitoring a voltage of the battery, detecting a low voltage of the battery based on a result of the monitoring and transmitting an operation inhibition signal for preventing power consumption of the battery to a plurality of controllers, and determining whether the plurality of controllers switch to a sleep mode in response to the operation inhibition signal.
Abstract: Disclosed herein is an apparatus for controlling a message communications load. The apparatus includes a determination unit configured to determine whether a number of messages transmitted to external devices and messages received from the external devices is equal to a predetermined number; a calculation unit configured to calculate a message load based on time stamps and a message occupation time of the messages if it is determined that the number of the messages is equal to the predetermined number; and a control unit configured to transmit a control instruction to the external devices to adjust a communications interval of the received messages according to the calculated message load.
Abstract: A method of operating a resolver management device according to the present invention includes: generating an excitation signal by using an external control signal; counting a time interval (a first delay time) to a first pole of the excitation signal based on one period of the external control signal by using an internal clock; receiving an excitation signal reflected from a resolver sensor; counting a time interval (a second delay time) to a second pole of the reflected excitation signal at the first pole by using the internal clock; and transmitting a first count value corresponding to the first delay time and a second count value corresponding to the second delay time to a microcontroller unit (MCU).
Abstract: The present invention relates to an apparatus for preventing a battery including a master battery and a slave battery from being over-charged, the apparatus including: a master battery management system (BMS) which determines whether the master battery is over-charged, and turns off a main relay which connects or disconnects between the battery and a motor of a vehicle when the master battery is over-charged as a result of the determination; and a slave BMS which determines whether the slave battery is over-charged, and turns off a charging relay which connects or disconnects between the battery and a charger provided outside the vehicle when the slave battery is over-charged as a result of the determination.
Abstract: The present invention relates to an apparatus for monitoring a tire pressure. Provided is a tire pressure monitoring apparatus including: a radius analyzing unit which calculates a radius analysis value using a relative speed difference and an average speed calculated from wheel speeds of the wheels mounted on the vehicle; a regression equation calculating unit which calculates a first regression equation for the calculated radius analysis value and first driving information and a second regression equation for the calculated radius analysis value and second driving information; a mass calculating unit which calculates an additional mass of the vehicle; a calibration unit which corrects the calculated radius analysis value using a combination of the calculated first and second regression equations and the calculated additional mass; and a low pressure determining unit which determines a low pressure of a tire mounted on the vehicle using the corrected radius analysis value.
Abstract: The present invention relates to an apparatus and a method for monitoring a tire pressure considering a low pressure situation. Provided is a tire pressure monitoring apparatus considering a low pressure situation including: a radius analyzing unit which calculates a radius analysis value using a relative velocity difference and an average velocity calculated from wheel velocities of the wheels mounted on the vehicle; a critical value setting unit which compares the calculated radius analysis value with a predetermined determination reference value and sets different critical values in accordance with the comparison result; and a low pressure determining unit which determines a low pressure of a tire mounted on a vehicle using the set critical value.
Abstract: Provided is an apparatus for compensating an image distortion and an apparatus for compensating an image distortion according to exemplary embodiments of the present invention, which compensates distortion of an image including a plurality of image division units includes: a compensation rate setting unit setting a variable distortion compensation rate so that the plurality of respective image division units are compensated at different ratios; and a compensation unit compensating the plurality of image division units according to the variable distortion compensation rate set by the compensation rate setting unit.
Abstract: A method of protecting a frictional element of a clutch for an automatic transmission includes calculating an equivalent rotation number X of a frictional element using a trigonometric function equation on the basis of a virtual right triangle, if a rotation number of an engine exceeds a predetermined boundary value during a driving in a constant speed stage over a predetermined shift stage of an automatic transmission, entering a frictional element protection mode, if the equivalent rotation number X of the frictional element exceeds a predetermined critical value in a state in which the control unit enters the frictional element protection mode, reducing the rotation number of the engine by applying a target engine torque limiting value.
Abstract: The present invention relates to a predictive transmission control method through road shape recognition, and more particularly, to a control method for carrying out predictive transmission by recognizing the shape of a road utilizing information of a high density map. The present invention provides a transmission control method which can provide an accurate predictive transmission by recognizing the shape of the front road based on GPS information.
Type:
Grant
Filed:
December 2, 2016
Date of Patent:
July 16, 2019
Assignee:
HYUNDAI AUTRON CO., LTD.
Inventors:
Dae-Geun Lee, Yong Min Kim, Jae Hoon Byeon, Ji Young Jung
Abstract: Provided are an apparatus for estimating vehicle mass using tire air pressure and a method thereof, the apparatus for estimating the vehicle mass including: an air pressure determining unit; a speed measuring unit; a data storing unit; an error calculating unit; and a mass calculating unit.
Abstract: An apparatus for pretreating a wheel speed includes a tone wheel having a plurality of teeth, a hall sensor configured to detect a measurement angle including an offset of each of the teeth, an offset correcting unit configured to correct the measurement angle with a corrective offset when disturbance is generated and a frequency estimating unit configured to estimate a frequency based on a result value calculated from the offset correcting unit.
Type:
Grant
Filed:
November 25, 2014
Date of Patent:
July 2, 2019
Assignee:
Hyundai Autron Co., Ltd.
Inventors:
Tae-Hun Kim, Seung-Hwan Shin, Byung-Koo Choi, Young-Taek Cho
Abstract: A rain sensor is included in a vehicle, and a method for controlling the vehicle utilizes the rain sensor. The rain sensor includes a light transmitter configured to radiate light to a windshield of the vehicle; a light receiver configured to receive light reflected from the windshield to generate a reception light signal; a filter configured to filter out noise from the reception light signal; and a controller configured to determine a presence or absence of pollutant and a degree of pollution on the basis of the filtered reception light signal, and perform pollutant removing.
Type:
Grant
Filed:
August 12, 2017
Date of Patent:
June 25, 2019
Assignees:
Hyundai Motor Company, Kia Motors Corporation, Hyundai Autron Co., Ltd.
Inventors:
Jong Min Park, Nak Kyoung Kong, Ki Hong Lee, Keun Sig Lim, Young Ik Cho, KyungTaek Kim, WonBok Hong, Taewang Kim
Abstract: Disclosed are a method of controlling a transmission for reducing clutch abrasion and an automatic transmission controlled by the method. The method is applied to a hybrid vehicle, and controls an automatic transmission having an independent flow control valve and an engine clutch cooling channel for the cooling of an engine clutch mounted thereon. The method includes a hybrid starter generator (HSG) state determination step of determining a state of an HSG, a driving motor cranking execution step of cranking an engine using a driving motor when the state of the HSG is a state in which the HSG does not operate in the HSG state determination step, and a cooling execution step of supplying an additional flow to the engine clutch cooling channel by driving the independent flow control valve, wherein the cooling execution step is performed simultaneously with the driving motor cranking execution step.