what does WH stand for in cars?

LinkBack Thread Tools Display Modes
Old 06 Jul 2010, 05:24 pm   #1 (permalink)
Junior Member
  • Join Date: Jul 2010
  • Posts: 1
  • User Status: Offline

Default what does WH stand for in cars?

in my prius, it will show the WH level every 5 minutes, and i dont know if the higher it is, the better or worse it is..

thanks for answers
  Reply With Quote
Old 06 Jul 2010, 05:30 pm   #2 (permalink)
Senior Member
  • Join Date: Apr 2010
  • Posts: 358
  • User Status: Offline


It stands for Watt-Hour and in Toyota hybrids it tells you how much energy was recovered by the regenerative braking and stored in the HV battery instead of being wasted as heat in the brake rotors and drums.

On your home electric bill you are billed in Kilowatt-hours which is 1000 watt-hours. Each icon on the consumption screen is 50 watt-hours which is 50 watts for 1 hour, 500 watts for 6 minutes, 5000 watts for 36 seconds, etc.

In this case more is better and you can improve the number that show up and thus your fuel economy by letting off the throttle sooner and by braking as lightly as possible as the harder you brake the more current is sent to the HV battery and since batteries aren't perfect the faster you try to charge and discharge them the more energy gets wasted as heat instead of being stored and released usefully.
  Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -5. The time now is 11:29 pm.

Powered by Yahoo Answers

ToyotaLexusForum.com is an unofficial community for car enthusiasts. ToyotaLexusForum.com is not affiliated with Toyota Motor Corporation in any way.
Toyota Motor Corporation does not sponsor, support, or endorse ToyotaLexusForum.com in any way.
Copyright/trademark/sales mark infringements are not intended or implied.