noun a device used to cheat emissions tests in vehicles
Engineers may design defeat devices for testing purposes, but using them in production vehicles is unethical and illegal.
A defeat device is a mechanism used to bypass emissions control systems in vehicles, allowing them to pass regulatory tests while emitting higher levels of pollutants during normal operation.
Consumers may be affected by defeat devices as they unknowingly contribute to higher levels of pollution and may be misled about the environmental impact of their vehicles.
Defeat devices are prohibited under environmental regulations to ensure that vehicles meet emissions standards and do not contribute to air pollution.
Companies found using defeat devices can face legal consequences for violating emissions regulations and engaging in deceptive practices.
A writer may use the term 'defeat device' when discussing technology used to cheat emissions tests in the automotive industry, providing background information or explaining the implications of such devices in their articles or books.
An engineer may refer to a 'defeat device' when designing or analyzing vehicle systems to ensure compliance with regulations and prevent the use of illegal software or hardware to manipulate emissions test results.
An environmental scientist may study the impact of 'defeat devices' on air quality and public health, conducting research to understand the extent of their use and proposing solutions to address the issue.