Green Car Congress

JULY 22, 2021

By 2030, the Rolls-Royce business unit is to cut greenhouse gas emissions by 35% compared to its 2019 level through the use of new net zero and zero carbon technologies. Or it relates to fuels such as hydrogen, that would not at all emit CO 2 at the exhaust pipe. This is not yet relevant for Rolls-Royce applications.

2019 418

2019 Engine Climate Power 418

Green Car Congress

FEBRUARY 7, 2020

[In the earlier version of this post, I mistakenly linked to and used the 2019 report rather than the current 2020 report. Testing has shown the ability of several advanced engine technologies to be optimized to improve fuel efficiency while increasing exhaust temperature in diesel engine exhaust, which improves NO x reduction performance.

Emissions 221

Emissions Fuel Economy Diesel 2019 221

Green Car Congress

JUNE 11, 2019

The MECA assessment is based on the implementation timeline presented by CARB staff at a January 2019 public workshop as well as the assumptions laid out in the CARB staff white paper released in April 2019. CO 2 and NO x certification test data for heavy-duty diesel engines certified from 2002 through 2019.

Standards 191

Standards Diesel 2019 Emissions 191

Green Car Congress

FEBRUARY 5, 2020

CO 2 and NO x certification test data for heavy-duty diesel engines certified from 2002 through 2019. Source of data: US EPA (2019). Chart: MECA. Some of these strategies can be deployed on cold-start to heat up aftertreatment and keep it hot under low engine load operation.

Emissions 291

Emissions Diesel Engine 2010 291