In-Vehicle Humidity Auto Idle Stop Conditions
WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
Auto idle stop is disabled when the climate control unit anticipates windshield fogging. The threshold depends on outside air temperature, the in-vehicle temperature, and the in-vehicle humidity. To determine the approximate auto idle stop threshold for the ambient conditions of the vehicle, use the instructions and the graph below:
NOTE:
Make a copy of this page to record your results on the graph.
- Using the climate control sensor input display mode of the HDS, record the outside air temperature (SENSOR 3), the in-vehicle temperature (SENSOR 2), and the in-vehicle humidity (SENSOR A).
- Draw a vertical line from the outside temperature value to the 80 percent relative humidity curve.
- Draw a horizontal line from the 80 percent intersection to the right side of the graph.
- Draw a vertical line from the in-vehicle temperature value to the top to the graph.
- The auto idle stop humidity threshold is where the lines cross. Auto idle stop is disabled when the in-vehicle humidity is above this point, and it is enabled when the humidity is below this point.
- In the example below, auto stop is disabled when the in-vehicle humidity exceeds about 30 percent. This is determined by an outside temperature of 45 °F (7 °C) and an in-vehicle temperature of 72 °F (22 °C).
The auto idle stop enable time depends on how close the in-vehicle humidity is to the calculated humidity threshold. The closer the in-vehicle value is to the threshold, the shorter the auto idle stop enable time will be. Auto idle stop may not occur if the values are too close.