AVL Inc | Date: 2015-06-04
A dual-purpose dynamometer assembly is disclosed including a dynamometer motor, a chassis dynamometer roll that can be driven by a vehicle wheel, and a powertrain dynamometer shaft that can be driven by a vehicle powertrain. A gearbox is disposed between and rotatably couples the dynamometer motor with the chassis dynamometer roll and the powertrain dynamometer shaft. At least one chamber wall defining a test chamber is disposed between the dynamometer motor on one side and the chassis dynamometer roll and the powertrain dynamometer shaft on the other side such that the dynamometer motor is disposed outside of the test chamber. There is at least one aperture penetrating the chamber wall through which the dynamometer motor is connected to the chassis dynamometer roll and the powertrain dynamometer shaft. Accordingly, the dynamometer motor is isolated from extreme temperatures within the test chamber.
AVL Inc | Date: 2010-01-12
A sliding vane rotary expander is used in a waste heat recovery system for a power plant. One example rotary expander has multiple stages with the vane assemblies disposed in bearing supported rings. Another example rotary expander has multiple stages with the vane assemblies disposed in an elliptical cavity. A balance valve equalizes the flow within the stages. Single stage rotary expanders may also be used.
AVL Inc | Date: 2013-08-29
A thermal management system for a battery pack having at least one battery cell is provided. The thermal management system may include a cooling plate disposed adjacent to the at least one battery cell. The cooling plate may include thermal pyrolytic graphite (TPG) to dissipate heat away from the at least one battery cell.
AVL Inc | Date: 2013-05-28
An exhaust sampling system for an engine is provided. The exhaust sampling system may include a source of exhaust gas, an exhaust collection unit including at least one collection bag that selectively receives the exhaust gas, and a first sample probe in fluid communication with the source of exhaust gas that selectively supplies the at least one collection bag with the exhaust gas. The exhaust sampling system may also include a controller that permits flow of the exhaust gas from the first sample probe to the at least one collection bag in a first state and prevents flow of the exhaust gas from the first sample probe to the at least one collection bag in a second state. The controller may determine an extraction rate of the first sample probe based on an ON time of the engine during a sampling period.
AVL Inc | Date: 2012-10-16
A battery module according to one embodiment of this disclosure includes a battery pack including multiple spaced apart battery cells, and a cooling system having multiple cooling plates providing a cooling plenum. The cooling plates are arranged in an alternating relationship between the battery cells, with each cooling plate including at least a first cooling channel and a second cooling channel. The first cooling channel has a first shape and is arranged in a first thermal region, and the second cooling channel has a second shape different than the first shape, and is arranged in a second thermal region different than the first thermal region.