全新的凯迪拉克CT5用风格，绩效和技术亮相

随着最新luxury sedan in the Cadillac lineup, the all-new 2020 CT5 has been designed with a number of performance and technology features, and wrapped in a stylish fastback profile, that build on Cadillac’s award-winning legacy. (Fig. 1) Available with rear-wheel drive or all-wheel drive, the CT5 is based on the global Alpha vehicle architecture.

Fig. 1

The CT5 is equipped with an all-new vehicle electronic system — the Next Generation Digital Vehicle Platform — capable of managing up to 4.5 terabytes of data processing power per hour. It provides more rapid communications within the vehicle itself and to outside sources due to Ethernet connections of 100Mbps, 1Gbps and 10Gbps.

Powertrain Features

At launch, the model range will include Luxury, Premium Luxury (Fig. 2) and Sport models. The 2.0L twin-scroll turbo 4-cylinder engine (RPO LSY) is standard and generates an estimated 237 horsepower and 258 lb.-ft. of torque.

Fig. 2

Later in the model year, the available 3.0L twin-turbo V6 engine (RPO LGY), which produces 360 horsepower and 405 lb.-ft. of torque, will be offered on Premium Luxury and V-Series models.

The turbocharged 2.0L DOHC, VVT 4-cylinder engine uses a twin-scroll turbocharger to help reduce turbo lag, with Active Fuel Management (AFM), Spark Ignited Direct Injection (SIDI) and Engine Stop/Start technology helping to improve fuel economy. (Fig. 3)

Fig. 3

The 2.0L 4-cylinder engine features a Sliding Cam System (SCS) that enables the Engine Control Module (ECM) to change the camshaft lift profile of the intake and exhaust camshafts while the engine is running. The SCS uses four intake camshaft profile actuators and two exhaust camshaft profile actuators that vary the Camshaft Lift Profile Sleeve position axially on the camshaft in response to electrical commands from the ECM. Each camshaft has two profile sleeves with different height cam lobes and each camshaft has a detent ball and spring under each sleeve that helps hold the profile sleeve into position.

The SCS profile actuator solenoids push out an actuator guide pin into the shifting groove machined into the Camshaft Lift Profile Sleeve. When the guide pin engages the sleeve, it causes it to shift axially on the camshaft, causing unique-sized cam lobes to be placed over the intake and exhaust valves and modify valve lift and duration.

2.0L发动机的气缸体由铝合金通过高压压铸构成，具有四个铸造的铁缸衬里，在线布置。

Within the engine block structural extension is the oil pump and the balance shafts. The balance shafts are driven by the balance chain. The oil pump assembly is driven by the balancer shaft assembly. The oil pump, which has variable flow capability to optimize oil flow to engine components as needed, uses a circular vane arrangement and the actuation of an oil control valve assembly commanded by the ECM.

The 2.0L turbocharged engine requires dexos1^®approved – GEN 2 full synthetic SAE 0W-20 viscosity grade engine oil.

燃油系统是一种电子无效率按需设计。电动净化泵安装在发动机上，旨在帮助符合最严格的排放法规。电动泵管理燃料箱的蒸汽吹扫。与传统的电磁阀相比吹扫排放，电动净化泵可更好地控制对时机和吹扫量的控制。

Both the 4-cylinder and V6 engines are paired to the Hydra-Matic^®10L80 10-Speed automatic transmission (RPO MHS). (Fig. 4) The ten speed ratios are generated using four simple planetary gearsets, two brake clutches, and four rotating clutches. The resultant on-axis transmission architecture uses a squashed torque converter, an off-axis pump and four close-coupled gearsets.

Fig. 4

All-Wheel Drive

Borg Warner™Model BW-4475转移盒是一个1速度的主动设计。传送箱允许车辆速度依赖性柔性离合器预载扭矩水平，以提高系统性能。通过软件校准调整按需扭矩偏置摩擦离合器。

The system has its own control module integrated with the vehicle chassis control system via the vehicle’s CAN bus. The torque split between the front and rear axle is not fixed and the system has the ability to transfer up to 100% of available torque to the front axle as needed.

驱动模式控制

The Driver Mode Control allows the driver to personalize the driving experience by selecting one of three pre-optimized selectable Drive Modes: Tour, Sport, Snow/Ice, and My Mode. (Fig. 5) My Mode enables the configuration of vehicle sub-systems, including steering, powertrain, braking, engine sound and other tuning. The modes are selected by pressing the Drive Mode button on the center console.

Fig. 5

底盘特色

新CT5上的底盘和驾驶动力学功能包括标准博世优质电动，机架式电动转向系统，EBOOST制动器和ZF MVS被动阻尼器以及体育型号的Brembo刹车。（图6）

Fig. 6

Depending on options, the following vehicle performance enhancement systems are provided:

• ABS
• 自适应巡航控制
• 双向WSS
• 制动干燥/清洁
• 碰撞迫在眉睫的制动
• Dynamic Rear Proportioning
• Electronic Stability Control
• Engine Drag Control
• 延长山持有开始助攻
• Panic Brake Assist
• Teen Mode Support
• 牵引控制
• 拖车摇摆控制

Driveline Damping is required on vehicles with Engine Stability Control (ESC), Stop/Start functionality and an automatic transmission. It maintains brake pressure to dampen driveline acceleration disturbance as the engine is restarted and holds brake pressure to retard or prevent the vehicle from rolling. It’s used for driver comfort and also to extend vehicle hold on a steep grade.

At all four corners of the CT5 are 18-inch alloy wheels on the Luxury model, while Premium Luxury and Sport models are equipped with 19-inch wheels.

Infotainment Systems

1080DP高清全彩10英寸对角线触摸屏安装在仪表板内，以便可见。（图7）

Fig.7

有两种可用的音频系统。高级音频系统由位于仪表板中心的九个扬声器组成，每个门口和后封装架子。

Bose Performance系列系统由15位高级扬声器组成，位于仪表板中心，每个门，每个门，以及后封装架。

Both systems feature Engine Sound Enhancement (ESE) to accentuate natural powertrain and exhaust system sounds and deliver them to the cabin at the right levels during the correct times, such as during engine start or spirited acceleration. It uses the infotainment system microphones, tachometer input, software integrated into the Amplifier/Active Noise Cancellation Module, and the vehicle speakers to determine and generate the correct frequencies needed to modify the sound and play it back through the speakers. The engineering and science behind ESE are rooted in orders, or sound frequencies, that are generated by the engine. ESE amplifies certain orders to achieve the desired sounds. Adding more orders produces a richer, more complex and pleasing sound. Sound levels are based on engine speed as ESE activates at approximately 3,000 rpm when the engine is moving into its optimal power band and on accelerator pedal position.

Safety Features

Depending on equipment, the CT5 offers an array of standard and available safety, driver awareness and driver assistance technologies.

Driver awareness technologies include standard Safety Alert Seat (SAS) and the available Rear Camera Mirror with zoom and tilt adjustment.

驾驶员辅助技术可能包括：自适应巡航控制，自动紧急制动（AEB），前进碰撞警报（FCA），前行人制动（FPB），车道变更警报（LCA），车道脱离警告（LDW），车道保持辅助（LKA）和侧盲区域警报（SBZA）。

此外，停车或备用辅助技术可能包括：自动停车辅助制动，背衬警告系统，前公园辅助（FPA），后交通警戒（RCTA），后园辅助（RPA），后视镜相机（RVC），反向自动制动（RAB）和环绕视觉。

The CT5 also is equipped with eight airbags to help protect occupants and features advanced sensing technology to help detect the type and severity of the collision that has occurred in order to ensure that the airbags inflate as quickly as needed. (Fig. 8) The sensing system includes four acceleration-based sensors at the front of the vehicle and on either side of the vehicle and two pressure-based sensors inside the front doors.

Fig. 8

无人驾驶牌照

CT5还提供可用的免提电源释放Decklid。免提Decklid使用带有Cadillac Crest目标投影的运动传感器，使所有者通过踢脚在后保险杠的左侧踢脚来激活主干释放。（图9）

Fig. 9

Flatbed Towing

A flatbed car carrier is recommended to transport a disabled vehicle. The transmission must be in Neutral when moving the vehicle. If the vehicle is equipped with a tow eye, only use the tow eye to pull the vehicle onto a flatbed car carrier from a flat road surface. Do not use the tow eye to pull the vehicle from snow, mud, or sand.

For additional information on the all-new 2020 CT5, refer to Bulletin #19-NA-247.

– Thanks to Blake Streling and Tom Renno