Browse Topic: Drive-by-wire

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Vehicle Propulsion Model Development for Pure Electric Vehicle Using Drive By Wire System2022-01-011903/29/2022
The present work focuses on developing a data-driven forward facing propulsion system model for Chevrolet Bolt 2019 EV vehicle. The model built in the study gives simulated results of the vehicle propulsion system dynamics and latencies when the necessary inputs of the accelerator pedal and brake pedal are known. Vehicle acceleration and braking characteristics are captured and built into the models in the shape of response maps function of vehicle speed and percentage pedal input. With the necessary inputs of APP and BPP, the model predicts the vehicle state in terms of axle torque and speed. The response maps are developed by performing specialized regression testing of the vehicle using New Eagle Drive By Wire system at the American Center of Mobility, (ACM) proving grounds. The model is validated by using track testing data around the ACM proving grounds and using the model to estimate the vehicle speed for various drive cycles containing normal and aggressive drive cycles by
Goyal, Vasu, Dudekula, Ahammad basha, Naber, jeffrey
Technical Paper
Smart Electro-Mechanical Actuation for Drive-by-Wire Applications2004-21-004510/18/2004
This paper will describe the technical capabilities and vehicle design freedom made possible by drive-by-wire powertrain and chassis control systems, using SKF's Smart Electro-Mechanical Actuating Unit (SEMAU) technology. It will describe the advantages to the vehicle users and vehicle manufacturers of integrating electronic controls into the previously mechanically, hydraulically, and pneumatically actuated function and also show how mechatronic solutions can contribute to these advantages. The paper will refer to the FILO, NOVANTA, and GM Hy-wire concept vehicles, which utilize “by-wire” technology, in order to illustrate these advantages.
Brown, Steven, Holweg, Edward
Technical Paper
Analysis of a F1 Car Hydraulic Circuit Dynamic Behavior2001-01-116203/05/2001
This paper deals with the study of the dynamic behavior of a F1 car gear selection hydraulic circuit, when involved in different shift transients. In the first part of the paper the actual circuit is described, and the main hypotheses adopted for the numerical modeling of the hydraulic power unit, of the control valves, of hydraulic pipes and of the actuators involved in the gear shift cycles are introduced. Particular attention is devoted to the actuators actual sequences, as applied by the Electronic Control Unit (ECU) to the servo-valves deputed to actuators control. The strategy to define each gear shift cycle in terms of actuators working position in time domain is chosen, using the frequency map of each servo-valve. A numerical vs. experimental comparison of the behavior of the actuators involved in the gear selection (during about 50 ms for an up shifting and 100 ms for a down shifting) is performed, with the target to define the validity limits of the numerical model results
Borghi, M., Milani, M., Piraccini, M., Flandoli, M.
Technical Paper
Influencing Dynamic Handling Response with Manipulation of Advanced All Wheel Drive Systems2000-01-346012/04/2000
Trucks and sport utility class vehicles are established as choice of daily transportation in the US. A new breed of vehicles, commonly referred as “crossover vehicles”, based on passenger car derived platforms, are rapidly filling in the ranks between trucks and automobiles. Most of these vehicles are equipped with relatively sophisticated all wheel drive systems. This sophistication is necessary to fulfill the target mission of these vehicles, to provide an automatic and effortless all wheel drive capability while retaining refined on road comfort. Building on some of the existing systems and sensors, and integrating with other vehicle systems such as ABS, traction control and stability control systems, it is possible to enhance handling response by creating a moment along yaw axis. Pitch and roll movements can also be indirectly influenced. Further possibilities and enhancements will be feasible when drive by wire systems and active suspensions will become available. While most of
Okcuoglu, Murat
Technical Paper
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