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2015-10-07
Event
This session is looking for abstracts focused on brake component product design challenges associated with the OE to Aftermarket replication and market release. Specifically, the organizers are interested in topics like typical product features, CTQ’s, commercial versus technical challenges, product differentiation and warranty feedback.
2015-10-06
Event
Vehicles are being electrified and motive systems are including varied electro-combustion systems. Few Service Technicians have experience in working on, nor diagnosing, such conventional and hybrid products. Learn how world-class companies are working to apply Condition Based Maintenance, Prognostics, Machine Health, 3D Graphics & Animations, Graphics-Based Service Information, Augmented Reality, and more to their products to keep Owners and Service Technicians productive, safe and happy.
2015-10-06
Event
Serviceability is the sum of a product’s repairability and ease, speed & accuracy of problem root cause determination; diagnosability. Improvements in service drive: increased customer & dealer satisfaction, reduced vehicle life cycle cost, reduced warranty & customer costs, and reduced downtime. Learn how companies in other sectors have and are applying SAE J817 to achieve these benefits. A path for developing index models for serviceability and diagnosability will be presented & discussed.
2015-09-29
Technical Paper
2015-01-2846
Chunshan Li, Guoying Chen, Changfu Zong, Wenchao Liu
This paper presents a fault-tolerant control (FTC) algorithm for four-wheel independently driven and steered (4WID/4WIS) electric vehicles. The Unscented Kalman Filter (UKF) algorithm is utilized in the fault detection and diagnosis (FDD) module so as to estimate the in-wheel motor parameters, which could diagnose parameters variations caused by in-wheel motor fault. A sliding mode controller (SMC) is able to compute the generalized forces/moments to follow the desired vehicle motion. By considering the tire adhesive limits, a reconfigurable control allocator optimally distributes the generalized forces/moment among healthy actuators so as to minimize the tire workloads once the actuator fault is detected. An actuator controller calculates the driving torques of the in-wheel motors and steering angles of the wheels in order to finally achieve the distributed tire forces. If one or more in-wheel motors lose efficacy, the FDD module diagnoses the actuator failures first.
2015-09-29
Technical Paper
2015-01-2879
Evandro Silva
In recent years the commercial vehicle industry, specifically the heavy duty truck product line, has seen a rapid increase in the replacement of pure mechanical systems by electronic controlled systems. Engine, transmission, brakes, lighting, clusters, etc. are all monitored and/or controlled electronically. The adoption of electronic systems created a substantial change in the complexity of our products. Currently Diagnostic Trouble Codes (DTC) displayed on instrument clusters, in the majority of the cases, are no longer generated by a single sensor/component failure, instead these DTCs are triggered by a system monitor flag, result of a below average performance or a failure of an entire system. This new level of complexity makes it very difficult for the current diagnostic methods and tools, to identify what is causing the equipment to operate below ideal conditions.
2015-09-29
Technical Paper
2015-01-2728
Paul C. Cain
OEM benefit: Vehicle manufacturers desire continuous feedback in monitoring key safety sub-assemblies. In this application, engineers are calculating the remaining brake pad life by monitoring the current thickness of the brake pad friction material. This information is used in scheduling preventative maintenance activities and avoiding safety incidents. Unplanned machine down time and field repair costs in earthmoving equipment is cost prohibitive. This technology allows OEM's to have high confidence, continuous feedback on this critical vehicle safety feature avoiding expensive, unplanned repairs and improving field "up time" performance. Application challenge: Developing a reliable linear position sensor that is suitable for continuous monitoring of brake pad material thickness in a high pressure, high temperature, high vibration and contaminated environments typical of large construction (earthmoving) vehicles.
2015-09-24
Event
The maturity of IVHM technologies has reached a point at which decision-makers responsible for asset operations and management want to assess the return on investment on the promising capabilities before implementation. This session will examine successful applications of IVHM and the resulting benefits, look at how the implementation decisions were made and discuss ways of approaching a business case analysis for an IVHM system, and the parameters involved.
2015-09-24
Event
This session will focus on initiatives and activities associated with conducting safe flight operations.
2015-09-23
Event
This session provides a forum to discuss the current and developing prognostic and diagnostic technology for aerospace systems including but not limited to engines, APUs, gearboxes, batteries, electric power generation, air conditioning systems, and health prognostic/diagnostic devices.
2015-09-23
Event
With new methods being developed a structured approach to their validation and verification is needed. This can even be taken as the scientific evidence for airworthiness authorities to allow a new technology to be operational. Concurrent with this, what are the metrics that are trying to be achieved with such approaches?
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