Abstract: The technology described herein provides methods and systems for powertrain optimization and improved fuel economy including multiple displacement engine modeling and control optimization, automotive powertrain matching for fuel economy, cycle-based automotive shift and lock-up scheduling for fuel economy, and engine performance requirements based on vehicle attributes and drive cycle characteristics. Also provided is a reverse tractive road load demand simulation algorithm used to propagate a reverse tractive road load demand and a corresponding component torque and speed, derived from a vehicle speed trace, in a reverse direction through a powertrain system. Also provided is a dynamic optimization algorithm. The dynamic programming algorithm is applied to a matrix of fuel flow rates to find the optimal control path that maximizes the powertrain efficiency over a cycle.
Abstract: The present disclosure utilizes Non-linear Proportional and Derivative (NLPD) control on a duty cycle of an applying clutch for stationary and rolling vehicle garage shifts. The applying clutch can be engaged by as electrically activated solenoid valve, and the present disclosure utilizes NLPD control to adjust the duty cycle of the solenoid to provide a smooth vehicle garage shift engagement. The present disclosure utilizes a control algorithm based on turbine speed, turbine acceleration, and output speed. The present disclosure can utilize an existing vehicle control unit, such as an engine control unit (ECU), transmission control unit (TCU), or the like, to receive turbine speed measurements, to calculate the solenoid duty cycle using NLPD control on the turbine speed acceleration error, and to adjust the solenoid driver on the solenoid valve.
Abstract: A throttle control system for a vehicle includes a suspension sensor that detects suspension amplitudes of a suspension system of the vehicle, a grade sensor that detects an angular position of the vehicle, and a controller that receives first operational data from the suspension sensor and second operational data from the grade sensor and regulates a throttle of the vehicle based on the first and second operational data.
Abstract: A restraint system is disclosed for securing a passenger to a seat in a motor vehicle. The restraint system is composed of a four point restraint belt removably attached to a vehicle seat having a plurality of vertical straps and attachment mechanisms for connecting said straps across the passenger's chest and lap. Each of the vertical straps has a first end removably attached to latches located in the front of the seat back and a second end removably attached to a latch located behind the vehicle seat.
Type:
Grant
Filed:
June 20, 2005
Date of Patent:
August 16, 2011
Assignee:
Chrysler Group LLC
Inventors:
Louis D DeLellis, John E Schambre, Michael O Forker
Abstract: A steering system including a rack and pinion, and two tie rods is provided. The rack has a rack axis, and each of the two tie rods has a tie rod axis. The rack is engaged by the pinion, such that rotation of the pinion drives the rack to move in a linear direction. Each of the two tie rods has its first end connected to the rack, such that the tie rod axis is offset from the rack axis. Further, each of the two tie rods has a second end, which is connected to the wheels of a vehicle.
Type:
Grant
Filed:
May 4, 2006
Date of Patent:
August 9, 2011
Assignee:
Chrysler Group LLC
Inventors:
Adrian Van Campenhout, Slawomir J. Herman, John O. Heimbecher
Abstract: The present disclosure provides a Front End Module (FEM) assembly and associated assembly method with a rail system to enable efficient assembly, tighter clearances between the front end module assembly and the vehicle, and time and cost savings. The present disclosure provides a FEM assembly including grilles and headlamps and a rail system enabling the FEM to be assembled on a vehicle. Advantageously, the present disclosure allows the FEM to pass between fenders on the vehicle with a very tight clearance condition. The rail system included in the present disclosure allows the FEM to be assembled efficiently while protecting grilles and headlamps from being damaged by fenders and protecting the fenders from damage from the FEM.
Abstract: An electronics module for automotive vehicles includes a housing; an electrical connector having a commercial standard electrical connector footprint mounted on the housing; and an electronics assembly including commercial standard communication bus electronics contained in the housing, the electronics assembly being electrically connected to the electrical connector. The electronics module is adapted to be plugged into a power distribution unit of an automotive vehicle in order to control power distribution components of the unit.
Abstract: A power device for use in a vehicle includes a housing, a voltage converter, and a charge-storing device. The housing carries the voltage converter and the charge-storing device. The voltage converter includes a circuit that converts a power signal having a first voltage level to a second voltage level. The charge-storing device electrically couples with the voltage converter and stores the power signal having the second voltage level.