Abstract: A method for providing a visual aid to guide a driver when executing a test cycle includes controlling an electronic display to display a graph including a target trace indicating a target speed of a vehicle during the test cycle and a first visual indicator of an actual speed of the vehicle during the test cycle, scroll the target trace from a first side of the graph to a second side of the graph during a time-based portion of the test cycle to indicate the target vehicle speed with respect to an amount of time elapsed since a start of the test cycle, and scroll the target trace from the first side of the graph to the second side of the graph during a distance-based portion of the test cycle to indicate the target vehicle speed with respect to a distance travelled by the vehicle during the test cycle.

Abstract: A method for providing a visual aid to guide a driver when executing a test cycle includes controlling an electronic display to display a graph including a target trace indicating a target speed of a vehicle during the test cycle and a first visual indicator of an actual speed of the vehicle during the test cycle, scroll the target trace from a first side of the graph to a second side of the graph during a time-based portion of the test cycle to indicate the target vehicle speed with respect to an amount of time elapsed since a start of the test cycle, and scroll the target trace from the first side of the graph to the second side of the graph during a distance-based portion of the test cycle to indicate the target vehicle speed with respect to a distance travelled by the vehicle during the test cycle.

Abstract: A system for taking an exhaust gas sample includes a first exhaust gas channel fluidically connected to a first exhaust gas source via a first exhaust gas inlet. A first air channel with a first air filter is configured to suck in ambient air. The first exhaust gas channel meets the first air channel in a first mixing zone, where a first exhaust gas is mixed with the ambient air to obtain a diluted exhaust gas/air mixture. A second exhaust gas channel is fluidically connected to a second exhaust gas source via a second exhaust gas inlet, and a second mixing zone. A control device and a measurement device are configured to respectively control and measure mass flows. The diluted exhaust gas/air mixture flows either from the first exhaust gas source or from the second exhaust gas source into the dilution tunnel and to at least one sampling probe.