What are the new technologies in automotive chassis?

How to Use Clutch and Brake When Going Downhill

There are two scenarios for using clutch and brake when going downhill: 1. Short and gentle slope: For small and short slopes, simply use the brake to control vehicle speed; 2. Steep and long slope: For steep and long slopes, shift to a lower gear in advance to utilize engine braking for speed control, while coordinating with brake application for deceleration. Precautions when going downhill: 1. Check braking performance: Always inspect braking effectiveness before descending to eliminate safety hazards. 2. Avoid coasting in neutral: Before descending, ensure the vehicle enters the downhill section at a controllable speed by selecting an appropriate low gear according to the slope gradient. Regardless of slope steepness, coasting in neutral is not recommended. Properly utilize engine braking to reduce vehicle inertia speed.

16

2

Share

What does KERS on a car mean?

KERS stands for the Kinetic Energy Recovery System. Its fundamental principle is to store the vehicle's braking energy through technical means and release it as auxiliary power during the car's acceleration process. The following are the constraint clauses in the new regulations: 1. Power requirements: The maximum output and input power of the KERS system must not exceed 60KW, and the total energy released per lap must not exceed 400KJ. 2. Racing requirements: During the refueling process in the pit, no additional energy storage can be added to the KERS system. The racing engine, gearbox, clutch, differential, KERS, and all related activation mechanisms must be controlled by the ECU provided by the FIA-designated ECU supplier (i.e., the standard ECU provided by McLaren).

16

3

Share

What does engine start-stop mean?

Engine start-stop is a very practical automotive energy-saving and emission-reduction technology. It automatically shuts off the engine when the vehicle comes to a temporary stop during driving (such as waiting at a red light). When it's time to move forward again, the system automatically restarts the engine. There are two main types: 1. Basic start-stop technology: The engine automatically turns off when the car encounters a red light or traffic jam, and promptly restarts when the driver releases the brake pedal or steps on the clutch (or accelerator pedal). 2. Advanced start-stop technology: Equipped with brake energy recovery function, it can convert part of the braking energy into electricity to charge the battery. In hybrid vehicles, the start-stop system is an important component of the powertrain.

12

1

Share

What's the matter with incorrect flow rate in the fuel tank venting system?

p0441 The reasons for incorrect flow rate in the fuel tank venting system: The activated charcoal canister is leaking or blocked. Here’s how to prevent vent hole blockage: 1. Regular inspection: Frequently check the vent holes to prevent potential issues. 2. Pay attention to airflow sounds: When refueling, listen for the sound of airflow when opening the fuel tank cap. One is the sound of air escaping, which is normal and common in summer; the other is the sound of air being sucked in. If you hear the latter, it indicates that the pressure inside the fuel tank is lower than the external pressure, which is likely due to a blocked vent hole. 3. Cover the vent hole with a screen: The vent hole is made of metal, so it's best to wrap it with a screen. For plastic hose vent holes, point the opening downward to avoid blockage.

17

1

Share

Can Tire Bolts Loosen Over Time?

Automotive tire bolts tightened clockwise to the proper position will not loosen under normal conditions. Exceptions include: 1. When tightening the bolts, if the jack has already been removed prematurely, the bolts may not be properly seated. 2. During tightening with the jack supporting the vehicle and the tire off the ground, if the bolts are hand-tightened until they won't turn further, use a tire wrench to apply slight diagonal force, ensuring no gap exists between the tire and brake disc. 3. After lowering the jack and removing it, tighten the bolts in a crisscross or diagonal pattern using a tire wrench to ensure even distribution of force on all bolts. 4. After final tightening, perform a test drive. After driving 50-100 kilometers, check the bolt condition for any loosening. If necessary, support with the jack again and repeat the above steps, ensuring uniform force application. 5. Both bolts and studs should be replaced simultaneously when needed. 6. If the bolt holes on the wheel rim have become enlarged, the bolts cannot be properly tightened, rendering them ineffective for securing the wheel.

13

2

Share

Can You Keep Driving When the Coolant Warning Light Comes On?

When the coolant warning light comes on, it is not advisable to continue driving the vehicle. Here are some details about automotive coolant: 1. After the coolant warning light illuminates: It is not recommended to keep driving the car. When the coolant level is low, the engine generates extremely high temperatures during operation, and without coolant, the engine cannot function properly. 2. The coolant used in cars must meet the vehicle's specifications: You can check the coolant level by opening the engine hood. 'Min' indicates the lower limit, and 'Max' indicates the upper limit. The coolant level should be between these two marks. 3. Driving with low coolant levels: Continuing to drive under such conditions may lead to rising engine temperatures, potentially causing severe damage to the engine. The primary function of coolant is to dissipate heat from the engine. Without coolant, the engine's cooling system fails, significantly reducing the vehicle's safety.

18

5

Share

What are the new technologies in automotive chassis?

How to Use Clutch and Brake When Going Downhill

What does KERS on a car mean?

What does engine start-stop mean?

What's the matter with incorrect flow rate in the fuel tank venting system?

Can Tire Bolts Loosen Over Time?

Can You Keep Driving When the Coolant Warning Light Comes On?

How to Lift the Wiper Blades on Nissan X-Trail?

What to Do When the Car Warning Light Comes On?

What is the issue with P2188 Cylinder Bank 1 System Too Rich at Idle?

What is the tutorial for adjusting the height of high beams?