- 您现在的位置：买卖IC网 > Sheet目录1223 > KIT33812ECUEVME (Freescale Semiconductor)KIT DESIGN FOR 33812/S12P
Appendix B: Software Reference Manual
represents, the angular rate of rotation can be calculated and then used to schedule the start of an event
in the future. When the start of the event occurs, the end of the event can be scheduled based on the
current data parameters of the fuel and spark controllers.
F u e l C o n t r o l l e r
Next F uel Event Data
T o o o t h h c c o u u n t
P u l l s s e e w i d d t h h
N ext Spark Event D ata
T o o o t h h c c o u u n t
D w e l l S t a r t
Figure 26. Fuel Controller Software Model
S p a r k C o n t r o l l e r
F u u e l I n n j e c t o r O u t t p u u t
I I g n n i i t i i o n C o i l l O u u t p p u t
S S p a r r k k S t t a r t t
Figure 27. Spark Controller Software Model
New data related to when the fuel and spark events occur and for how long, are determined by the Engine
Management task. The basis of this new data is a table look up using engine speed and load data
provided by the User Management task. Once the table look up takes place, any modifiers to the base
table look up can then be added to create a value that can be used by the fuel or spark controller. To
prevent complications and undesired operation, any new data calculated by Engine Management will go
into a variable that will not be loaded by the fuel or spark controller until the current event completes. This
lockout mechanism prevents malicious modification to fuel or spark timing during a fuel or spark event.
L O A A D D
R P M
A d d e r r v a a l l u e s
B a s s e t a b l e e l l o o k k u p
E n g i n e M a n a g e m e n t
F F i n n a a l l v a a l l u e
c a a l l c u u l l a t i o o n
N N e x x t F u u e e l l a n d S S p p a r k k
E E v e e n n t t S S c h e d d u u l l i n n g
Figure 28. Engine Management Software Model
All data collection is performed by the Data Management task, with two exceptions: engine speed and
optionally MAP data. As the crankshaft controller uses tooth period data, it makes sense for it to collect
this data for use. Measuring MAP at specific teeth has strong benefits to the system and allows four-cycle
synchronization without a cam sensor. The Data Management task is designed to collect data at a
Freescale Semiconductor
57
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
KIT33812EKEVBE
BOARD EVALUATION FOR MC33812
KIT33879AEKEVBE
BOARD EVALUATION FOR MC33879
KIT33880DWBEVB
KIT EVAL FOR MC33880 8X SW W/SPI
KIT33886DHEVB
KIT EVAL FOR MC33886 H-BRIDGE
KIT33887EKEVBE
BOARD EVALUATION FOR MC33887
KIT33887PNBEVB
KIT EVAL 33887 5A H-BRIDGE PQFN
KIT33905D5EKEVBE
KIT EVALUATION FOR MC33905
KIT33912EVME
KIT EVALUATION FOR MC33912
相关代理商/技术参数
KIT33812ECUEVME
制造商:Freescale Semiconductor 功能描述:Small Engine Control Reference Design
KIT33812EKEVBE
功能描述:电源管理IC开发工具 INTEGRATED DUAL LOW & HI RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
KIT33813AEEVBE
功能描述:电源管理IC开发工具 2 Cylinder Small Engine
RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
KIT33814AEEVBE
功能描述:交换机 IC 开发工具 2 Cylinder Small Engine RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:USB Power Switches 工具用于评估:MAX4984E 工作电源电压:2.8 V to 5.5 V
KIT33816AEEVM
功能描述:电源管理IC开发工具 Engine Control Module RoHS:否 制造商:Freescale Semiconductor 产品: 类型: 工具用于评估: 输入电压: 输出电压:
KIT33879AEKEVBE
功能描述:电源管理IC开发工具 CONFIGURABLE OCTAL RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
KIT33880DWBEVB
功能描述:电源管理IC开发工具 33880DWB COSS KIT RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
KIT33883DWEVB
功能描述:KIT EVAL FOR MC33883 PRE-DRIVER RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 传感器类型:CMOS 成像，彩色（RGB） 传感范围:WVGA 接口:I²C 灵敏度:60 fps 电源电压:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相关产品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP