Electric Solar Vehicle Championship-escv19 Test

The minimum ground clearance allowed for the ESVC19 vehicle is 6 inches. Ground clearance refers to the distance between the lowest point of the vehicle and the ground. This measurement is important as it determines the vehicle's ability to navigate different terrains without causing damage to its underbody. In this case, a ground clearance of 6 inches ensures that the ESVC19 can safely traverse various road conditions without any issues.

The correct answer is behind the firewall/Main roll hoop only. This is because positioning the battery pack behind the firewall or the main roll hoop ensures that it is securely protected in case of any impact or crash. Placing it under the driver seat, in front of the front roll hoop, or in the side pods may expose it to potential damage and compromise the safety of the vehicle and its occupants.

The range of wheel size in ESVC 2019 is 12 inch to 14 inch.

A battery level indicator is necessary to be provided in front of the driver on the dashboard because it allows the driver to monitor the battery's charge level. This information is important as it helps the driver to know when the battery is running low and needs to be recharged or replaced. Additionally, a battery level indicator can also help in diagnosing any potential issues with the vehicle's electrical system. Therefore, it is essential to have a battery level indicator in front of the driver on the dashboard for convenience and safety purposes.

Teams are not allowed to place panels on the roof or over the head of the driver for adventure class ESVC.

The picture shown represents node to node triangulation. This refers to the structural design technique in which the nodes, or connecting points, of a structure are reinforced or triangulated to enhance its strength and stability. Triangulation helps distribute forces evenly and prevents deformation or failure of the structure. In the given picture, the presence of multiple connecting points forming triangles suggests the use of node to node triangulation in the design.

The correct answer is 180 Kg because it states that the weight of the adventure class esvc must be under 180 Kg. This means that the weight cannot exceed 180 Kg and must be less than that amount.

Jack Point should be positioned at each end, both in the front and rear. This means that there should be a Jack Point located at the front of the object or vehicle, as well as another Jack Point located at the rear. This positioning ensures stability and balance when lifting or supporting the object or vehicle, allowing for safe and effective maintenance or repair work to be carried out.

The hitch point should be painted with yellow color. This is because yellow is a highly visible color that stands out, making it easier to locate the hitch point. It is important for the hitch point to be easily identifiable for safety reasons, especially in situations where quick and accurate connections are necessary. Yellow color also signifies caution and is commonly used in traffic signs and markings to indicate potential hazards.

The correct answer is "Separate entities." This means that the bumper, hitch point, and jacking point are not connected or combined in any way. They are individual components that serve different purposes and are not dependent on each other.

The correct answer is SAE 95th percentile Male and 5th percentile Female. This means that the teams are required to provide ergonomics that cater to the body dimensions and requirements of the largest and smallest individuals in the population. The 95th percentile Male represents the larger, taller, and heavier individuals, while the 5th percentile Female represents the smaller, shorter, and lighter individuals. Designing for these extremes ensures that the ergonomics are suitable for a wide range of people and promotes comfort, safety, and efficiency.

The brake pedal needs to be able to handle a certain amount of force without causing any failure in the brake system or pedal box. The correct answer is 2000 N, which means that the brake pedal should be designed to withstand a force of 2000 Newtons. This ensures that the pedal is strong enough to handle the pressure exerted on it during braking without any issues or failures.

The main roll hoop needs to be a single piece and continuous in order to provide maximum structural integrity and safety in the event of a rollover. If the roll hoop is made up of cut pieces or has a square cross section, it may compromise the overall strength and stability of the structure. Additionally, using materials other than steel for the roll hoop may not provide the necessary strength and protection required in high impact situations. Therefore, the main roll hoop should be a single piece and continuous for optimal safety.

The use of a battery management system (BMS) with a battery pack is compulsory. A BMS is essential for monitoring and managing the performance, safety, and lifespan of the battery pack. It helps to prevent overcharging, over-discharging, and overheating of the battery, which can lead to damage or even safety hazards. The BMS also provides important information about the battery's state of charge, voltage, and temperature, allowing for efficient and optimized operation. Without a BMS, the battery pack would be at risk of failure or malfunction, making its use compulsory.

The floor close out panels must be made of aluminium/steel because these materials are strong, durable, and resistant to wear and tear. They can withstand heavy loads and provide a stable surface for walking or placing equipment. Additionally, aluminium/steel panels are fire-resistant and have good thermal conductivity, making them suitable for use in various environments. Using only steel or only aluminium panels may not provide the same level of strength and durability required for the floor close out panels. Wooden ply, on the other hand, is not a suitable material for this purpose as it is not as strong or durable as aluminium/steel.

Teams can use a separate battery of max 12V for all the mentioned options, including the horn, battery level indicator, and brake light. This means that each of these components can be powered by a separate battery with a maximum voltage of 12V.

The tip of the main roll hoop must be 4 inches away from the driver's helmet. This is to ensure the safety of the driver in the event of a crash or rollover. By maintaining a distance of 4 inches, it helps to minimize the risk of the driver's helmet coming into contact with the roll hoop, reducing the potential for head injuries.

Teams are allowed to provide passage/slots for air to get in so that cooling of the battery and motor can take place. This is important because during operation, batteries and motors can generate a significant amount of heat, and without proper cooling, they can overheat and potentially fail. Allowing air to flow through the system helps dissipate this heat and prevents damage to the components. Therefore, the statement is true.

The maximum voltage of an accumulator allowed for the Professional class is 72 V. This means that the voltage of the accumulator cannot exceed 72 V. Additionally, the maximum energy capacity of the accumulator allowed for the Professional class is 38 MJ. This means that the energy stored in the accumulator cannot exceed 38 MJ.

The correct answer is 2 because each team must have at least one fire extinguisher, and the question states that each fire extinguisher must weigh 1 kg. Therefore, if each team must have a fire extinguisher of 1 kg, they must have 2 fire extinguishers in total.

The driver must have a vision range of 200° in order to have a clear view of the surroundings while driving. This range allows the driver to see objects and potential hazards from both sides of the vehicle, ensuring a safer driving experience. A vision range of 100° would limit the driver's visibility, while a range of 300° or 360° would provide a wider view but may not be necessary for normal driving conditions. Therefore, 200° is the most appropriate vision range for a driver.

Competition vehicles require at least two braking hydraulic circuits. This is necessary to ensure redundancy and safety in case one circuit fails. Having two circuits allows for independent braking on different wheels or axles, providing better control and stability during high-speed maneuvers. It also ensures that the vehicle can still be brought to a stop even if one circuit becomes compromised or malfunctions. Therefore, competition vehicles must have a minimum of two braking hydraulic circuits.

The distance from the hip point to the top of the head restraint must be at least 800 mm. This is important for ensuring proper safety and comfort for the occupant. A head restraint that is too low or too close to the hip point can increase the risk of whiplash injuries in the event of a collision. Therefore, it is necessary to have a minimum distance of 800 mm to provide adequate support and protection to the head and neck.

The correct answer is 1500 Watt (minimum) to 2250 Watt (maximum). This is because an Adventure class ESVC must have a total power within this range. The minimum power requirement ensures that the ESVC has enough power to function properly, while the maximum power limit prevents excessive power consumption. This range allows for a sufficient power supply while also promoting energy efficiency.

Teams should make sure that fluctuating Direct Current should not reach Battery Pack directly. Direct current is the flow of electric charge in a single direction, while alternating current periodically reverses direction. Since batteries typically operate on direct current, it is important to prevent any fluctuations or variations in the current from reaching the battery pack directly. This is because fluctuating current can cause damage to the battery cells and affect their performance and lifespan. Therefore, it is necessary to regulate and stabilize the direct current before it reaches the battery pack.

The primary chassis members must have a circular cross section. This is because circular cross sections offer better structural integrity and load-bearing capabilities compared to other shapes. Circular cross sections distribute stress evenly, making them more resistant to bending and torsion forces. Additionally, circular cross sections eliminate sharp corners, reducing stress concentrations and the likelihood of material failure. Therefore, using circular cross sections for primary chassis members ensures optimal strength and safety for the overall structure.

In driver ergonomics for cockpit design, the angle between each occupant's shoulders, hips, and knees must be more than 90°. This is because a greater angle helps to ensure proper posture and comfort for the driver, reducing the risk of musculoskeletal discomfort or injury during long periods of driving. A larger angle also allows for better flexibility and ease of movement, allowing the driver to operate the vehicle controls more effectively.

Yaw refers to the rotation of a vehicle around its vertical axis, which is typically controlled by the steering wheel. Under braking, the vehicle should not experience excessive yawing, as it can lead to loss of control and instability. Therefore, the correct answer is Yaw.

The bumper should be able to bear front impact load and vertical load up to 100 kg. This means that it should be strong enough to withstand forces of up to 100 kg without getting damaged or deformed. This is important for ensuring the safety of the vehicle and its occupants in the event of a collision or impact.

The correct answer is SFI Specification 16.1, 5-point harness. This is because all vehicles must be equipped with a 5-point harness that meets the SFI Specification 16.1. A 5-point harness provides better restraint and safety for the occupants of the vehicle compared to a 4-point harness. The SFI Specification 16.5 is not applicable in this case as it does not mention the use of a harness. The option mentioning "Bucket seats commercial seat belts" is also incorrect as it does not specify the type of harness required.

If multiple panels are used for floor close-out, the gaps between panels should not exceed more than 3 mm. This is because larger gaps can lead to unevenness and instability in the flooring. Keeping the gaps within 3 mm ensures a smooth and secure floor surface.

The maximum voltage allowed for the Adventure class accumulator is 60 V. This means that the voltage should not exceed 60 V in order to ensure the safe operation of the accumulator. Additionally, the maximum energy allowed is 20 MJ. This means that the energy stored in the accumulator should not exceed 20 MJ to prevent any potential hazards or damage.

The statement is false because the front roll hoop is not mandatory for the Professional class ESVC.

The impact bumper should be present on both the front and rear of the vehicle. This is because the purpose of an impact bumper is to absorb and distribute the force of a collision, protecting the vehicle and its occupants. By having impact bumpers on both ends of the vehicle, it ensures that the vehicle is protected from impacts that may occur from either direction.

The steering wheel must have a continuous perimeter to ensure that there are no breaks or interruptions in the shape of the wheel. This is important for providing a smooth and uninterrupted grip for the driver's hands while steering the vehicle. A continuous perimeter also allows for easy and comfortable maneuvering of the wheel.

The correct answer is i. 10° max, ii. 20° max. This means that the maximum angle for the first figure is 10° and the maximum angle for the second figure is 20°.

A brake pedal over-travel switch must be installed on the car as part of the shutdown system and wired in series with the shutdown buttons. This means that the switch and the buttons are connected in a sequence, where the current flows through the switch first and then through the buttons. Wiring them in series ensures that the shutdown system is activated only when both the brake pedal over-travel switch and the shutdown buttons are engaged, providing a reliable and safe shutdown mechanism for the car.

The term "travel" refers to the total distance that the suspension can move up and down. In order for the suspension to effectively absorb shocks and bumps, it needs to have a minimum of 4 inches of travel. This ensures that there is enough room for the suspension to compress and extend, allowing for a smoother and more comfortable ride.

The correct answer is "Horizontally between front roll hoop and steering wheel." This means that the distance between the front roll hoop and the steering wheel must be measured in a horizontal line. The other options mentioned in the question, such as measuring at the angle of the front roll hoop or at a similar inclination to bracing, are not the correct ways to measure this distance. The measurement should be taken directly between the two points in a straight line.

The welding of the firewall on the frame is acceptable means that it is permissible and considered appropriate to weld the firewall onto the frame. This suggests that welding is an approved method for attaching the firewall to the frame, indicating that it is a secure and reliable way to connect these two components.

The brake over-travel switch needs to be a single point, single throw in order to effectively control the braking system. This means that it has only one contact point and can only be in one of two positions - either open or closed. This configuration ensures that the switch can accurately detect and respond to the over-travel of the brake pedal, activating the necessary actions to prevent any further movement and maintain the safety of the braking system.

Overhanging solar panels need to be securely bolted to the bodywork to ensure they are stable and do not pose a risk of falling off while the vehicle is in motion. This is important for the safety of both the vehicle occupants and other road users.

The statement is false because the rack and pinion type of steering system is not mandatory with a specific same steering ratio. Different vehicles may have different steering ratios depending on their design and intended use. While the rack and pinion system is commonly used in modern vehicles for its simplicity and efficiency, other types of steering systems, such as recirculating ball or worm and sector, can also be used with varying steering ratios. Therefore, the statement is incorrect.

The statement is true for the Brake over travel switch. This switch is designed to prevent power from being restored to certain components even if the switch is repeatedly actuated. Additionally, it is designed in a way that the driver cannot reset it, ensuring that the power remains off.

The given answer is correct because the total vehicle length is specified as 5000 mm, which matches the requirement for a professional class ESVC. The other measurements provided, such as the wheelbase and track width, do not meet the specified values and are therefore not relevant to the correct answer.

In the side view, the front roll hoop can be inclined more than 10 degrees.

The Main Hoop braces must be attached as near as possible to the top of the Main Hoop but not more than 160 mm below the top-most surface of the Main Hoop.

The body works should cover the wheels in order to provide protection and enhance the overall appearance of the vehicle. By covering the wheels, it helps to prevent dirt, debris, and other elements from damaging the wheels and also improves the aerodynamics of the vehicle. Additionally, covering the wheels adds to the sleek and streamlined design of the car, making it more visually appealing.

The front roll hoop should be made up of multiple pieces with gusseting. This means that it should be constructed using more than one section or piece of material, which are then reinforced with gussets. Gusseting involves adding additional material to strengthen the joints or connections between the different sections of the roll hoop. This design ensures that the front roll hoop is strong and able to withstand the forces and impacts that it may encounter during use.

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