Jump to content

Hybrid-electric artics


Recommended Posts

Theoretically, could you use a smaller engine (B6.7-size) in an artic with a beefed up hybrid system? Would this make any sense?

Also, why does Allison dominate in the heavy duty hybrid market with the H 50 EP? Why don't more transit agencies use the BAE HDS 300?

Link to post
Share on other sites
13 hours ago, Jova42R said:

Theoretically, could you use a smaller engine (B6.7-size) in an artic with a beefed up hybrid system? Would this make any sense?

I'm pretty sure you could put a 4 cylinder ISB in a hybrid artic if you wanted- main thing is longevity and fuel economy. In a series hybrid artic, you could tune a 6.7 to the same power rating as an L9, but the 6.7 will have to work harder to deal with the load/electrical demand on it than the L9 will to keep the batteries charged. That means it'll have to use more fuel to operate at that higher rpm, something the ISB likely hasn't been optimized for. If you're running that 6.7 harder than the L9 every day for say, 12 years, chances are it won't last as long as the L9 hence why its hard to come across ISB artics. In parallels its the same case, especially since the diesel motor is directly connected to the wheels. 

  • Thanks 1
Link to post
Share on other sites
2 minutes ago, Doppelkupplung said:

I'm pretty sure you could put a 4 cylinder ISB in a hybrid artic if you wanted- main thing is longevity and fuel economy. In a series hybrid artic, you could tune a 6.7 to the same power rating as an L9, but the 6.7 will have to work harder to deal with the load/electrical demand on it than the L9 will to keep the batteries charged. That means it'll have to use more fuel to operate at that higher rpm, something the ISB likely hasn't been optimized for. If you're running that 6.7 harder than the L9 every day for say, 12 years, chances are it won't last as long as the L9 hence why its hard to come across ISB artics. In parallels its the same case, especially since the diesel motor is directly connected to the wheels. 

Would an IS/B6.7 tuned up produce the same emissions as an L9 or would it be lower?

Link to post
Share on other sites
1 hour ago, Jova42R said:

Would an IS/B6.7 tuned up produce the same emissions as an L9 or would it be lower?

I don't know the answer to that- probably better suited for the professionals and more knowledgeable folk around here. But it would also depend on how the hybrid program is setup, and that varies from agency to agency. 

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...