Systems and methods for particulate filter regeneration
A particulate filter and torque converter technology, applied in the field of systems and methods for particulate filter regeneration, can solve problems such as reducing combustion stability
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[0014] The following description relates to systems and methods for adjusting engine compression ratio and spark timing to increase filter temperature prior to initiating filter regeneration. figure 1 An example engine system including a particulate filter (PF) coupled to a hybrid vehicle is shown in . figure 2 An example of a vehicle driveline including a torque converter and a transmission system is shown in . The engine controller can be configured to execute control programs such as image 3 An example routine to coordinate adjustments to engine compression ratio with spark timing adjustments to increase PF temperature for PF regeneration. Figure 4 An example relationship between exhaust gas temperature and engine compression ratio is shown in . Figure 5 An example of coordinated adjustment of engine compression ratio and spark timing for increasing PF temperature is shown in .
[0015] figure 1 is a schematic diagram showing a vehicle system 100 including a vehicle...
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