Southwest Research Institute

Honda Motor Co., Ltd.

Junmin Wang

James W Post, Ii

Andrew John Fox

Madhu Soodhanan Govindarajan

Shizuo Sasaki

Jayant V Sarlashkar

Gary Dale Neely

Charles Edward Roberts, Jr

Thomas W Ryan, Iii

Christopher James Chadwell

Bapiraju Surampudi

Ryan C Roecker

Joe Steiber

Gary D Neely

A target system that includes a target that is selected, wherein the target includes a surface with depth variations. The target system additionally includes a laser sensor adapted to scan the target for localization.

Target recognition and localization methods using a laser sensor for wheeled mobile robots

A mobile robot target system that includes a mobile robot. The mobile robot target system additionally includes a laser scanner operably connected to the mobile robot. The laser scanner includes a laser sensor that scans an area around the mobile robot to detect a target. The mobile robot is localized based on the detection of the target by the laser sensor.

A localization scheme and method using a laser sensor for indoor wheeled mobile robots (IWMR), which need to localize themselves for working autonomously, is provided. In this method, a laser sensor moves inside an onboard guide way and its distance measurements are used to robustly detect and recognize a unique target based on edge detection and pattern recognition techniques. From the distance measurements with respect to the recognized target, a kinematic model is developed to determine the IWMR orientation and location in the global co-ordinates (in 2-D). Such target recognition and localization methods are validated with experimental results.

The present disclosure relates to a reference yaw rate generator for an autonomous ground vehicle control system. The reference yaw rate generator is configured to generate a reference yaw rate (r) based on an actual latitudinal position (Y), a desired latitudinal position (Y), an actual longitudinal position (X), a desired longitudinal position (X) and an actual heading (&#x3c8;) of the autonomous ground vehicle.

Autonomous ground vehicle control system for high-speed and safe operation

A method of modeling a diesel engine that is capable of multiple combustion modes and equipped with a turbocharger and EGR loop. The model comprises a set of equations, each equation representing one of the following as a time derivative: pressure at the intake manifold, pressure between the turbine and an intake manifold throttle, pressure at the exhaust manifold, the compressor power, and the fresh air fraction (the ratio of fresh air to EGR). The model is used to determine what engine conditions (such as throttle positions and turbocharger output) will result in desired pressures and fresh air fraction.

Dynamic modeling of an internal combustion engine operating with multiple combustion modes

When operating in a homogeneous charge compression ignition combustion mode, an in-cylinder condition guided fueling function and a dedicated exhaust burner disposed in an exhaust gas recirculation system of the engine are used to burn excess oxygen in recirculated exhaust gas and to achieve fast and smooth engine response during transient operation.

Apparatus and method for controlling transient operation of an engine operating in a homogeneous charge compression ignition combustion mode

A method of controlling a diesel engine that is capable of multiple combustion modes and equipped with a turbocharger and EGR loop. The control method avoids a singularity condition inherent in turbocharged diesel engine having multiple combustion modes. For different combustion modes, different system states, control variables, and actuators are carefully chosen for different controllers based on the characteristics of the corresponding combustion mode as well as sensor and measurement limitations.

Control of in-cylinder conditions of an internal combustion engine operating with multiple combustion modes

The present disclosure relates to a method and/or engine controller and/or article comprising a storage medium having stored thereon instructions that when executed by a machine estimate air fractions in internal combustion engines with dual-loop EGR (exhaust gas recirculation) systems for supporting multiple alternative combustion modes.

Air fraction estimation for internal combustion engines with dual-loop EGR systems

Control system for an internal combustion engine operating with multiple combustion modes

A fuel property adaptive control system for controlling the performance of an engine, such as an internal combustion engine. An on-board fuel classifier classifies the fuel that the engine is running. Based on stored properties for that fuel, the system selects optimal engine control parameters.

Fuel property-adaptive engine control system with on-board fuel classifier

A system and method for modeling and controlling an internal combustion engine having multiple combustion modes. The in-cylinder condition is controlled by gas handling devices through both a feed forward and feedback path. The latter path includes an 'in-cylinder condition estimator' and a non-linear controller. Fueling parameters are controlled by engine speed, desired torque, and input from the in-cylinder condition estimator.

Control system for engines having multiple combustion modes

A control system for an internal combustion engine, which is capable of optimally controlling fuel injection by an injector even in a transient state of the engine. An ECUof the engine provided with an EGR system () controls the amount (Fa) of air drawn into cylinders () via an intake system (). An air flow sensor () detects the intake air amount (Fa). The ECUestimates a flow rate (Fe_hat) of EGR gases according to response delay of recirculation of the EGR gases by the EGR system (), estimates the amount (mo) of oxygen existing in the cylinder (), based on the detected intake air amount (Fa) and the estimated flow rate (Fe_hat) of the EGR gases, determines a fuel injection parameter (Q*) based on the engine speed (Ne) and the estimated in-cylinder oxygen amount (mo), and controls an injector () based on the determined fuel injection parameter (Q*).

Control system for internal combustion engine

A virtual cylinder pressure sensor for use with an internal combustion engine. The sensor has one or more independent modules, each used to estimate a different cylinder pressure variable. Each module is trained using measurement data from a physical cylinder pressure sensor and a real engine. After the modules are trained, they can be embedded into the engine control unit of the same engine type, and used to estimate and predict the values for which they were trained.

Virtual cylinder pressure sensor with individual estimators for pressure-related values

A method and system for providing data representing crankshaft position. For each rising edge of the crankshaft signal, a position value and a factor value are stored in a look-up table. Cam and crankshaft signals are used to locate an initial crankshaft position. This initial position value is used as a pointer to the look-up table, and incremented with each rising pulse of the crankshaft signal. Data from the table is used to extrapolate crankshaft position from crankshaft signal values to a desired resolution in degree angle units.

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Helotes, TX, United States of America

Junmin Wang