MFD shows incorrect engine status

[JimboK]

Originally Posted by Rest

Here is something that may be an error. When I drive in that sweet spot, no arrows, and watch my SG2 the battery SOC goes down some. This tells me battery power is being used but it shouldn't be when there are no arrows showing.

Not an error, just the way it's designed. It's not a precision device.

However, you are correct that there is current flow out of the battery during a sub-41 MPH no-arrows condition -- a "glide" as most of us regulars in these parts call it. There appears to be a more-or-less linear relationship between current flow (up to 8 amps) and vehicle speed when using go-pedal feathering. On the other hand, using neutral to glide uses considerably less current and maintains SOC longer, though at the price of slightly increased drag. See this for more.

[hc167]

yes, when the car is not moving and you step on the brake. there is an arrow from the battery to the motor. that is normal. because it is powering the motor. why is that, because you did not step on the brake hard enough. do two tests, when you see this happen next time, either hit the "park" button or hit the brake harder. that will deactivate the power from battery to the motor. it is just like regular car when you stop at "D", the engine try to move the car but your brake try to stop the car. prius try to simulate this by activate and deactivate the motor at the position of the brake that you step on.

[richard schumacher]

The cartoon only shows energy flows within the drive system. Energy flow out of the battery to the A/C, lights, accessories, etc. is not shown.